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Shuttle-Mir Program

 
Shuttle Mir Program

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Shuttle-Mir Program



 
 
The Shuttle–Mir Program was a collaborative space program between Russia
Russia

Russia , or the Russian Federation , is a list of countries spanning more than one continent country extending over much of northern Eurasia....
 and the United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
, which involved American Space Shuttle
Space Shuttle

NASA's Space Shuttle, officially called the Space Transportation System , is the spacecraft currently used by the United States government for its human spaceflight missions....
s visiting the Russian space station
Space station

A space station is an artificial structure designed for humans to live in outer space. So far only low earth orbit stations are implemented, also known as orbital stations....
 Mir
Mir

Mir was a Soviet Union orbital station. Mir was the world's first consistently inhabited long-term research station in space, and the first 'third generation' type space station, constructed over a number of years with a Space station#Modular....
, Russian cosmonauts flying on the shuttle and an American astronaut flying aboard a Soyuz spacecraft
Soyuz spacecraft

Soyuz ; English: Union) is a series of spacecraft designed for the Soviet space program by the S.P. Korolev Rocket and Space Corporation Energia....
 to engage in long-duration expeditions aboard Mir.

The program, sometimes called 'Phase One', was intended to allow the United States to learn from Russian experience into long-duration spaceflight and to foster a spirit of cooperation between the two nations and their respective space agencies
List of space agencies

This is a list of government agency engaged in activities related to outer space and space exploration.The name given is the English language version, with the native language version below....
, NASA
NASA

The National Aeronautics and Space Administration is an agency of the Federal government of the United States, responsible for the nation's public list of space agencies....
 and RKA.






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Encyclopedia


The Shuttle–Mir Program was a collaborative space program between Russia
Russia

Russia , or the Russian Federation , is a list of countries spanning more than one continent country extending over much of northern Eurasia....
 and the United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
, which involved American Space Shuttle
Space Shuttle

NASA's Space Shuttle, officially called the Space Transportation System , is the spacecraft currently used by the United States government for its human spaceflight missions....
s visiting the Russian space station
Space station

A space station is an artificial structure designed for humans to live in outer space. So far only low earth orbit stations are implemented, also known as orbital stations....
 Mir
Mir

Mir was a Soviet Union orbital station. Mir was the world's first consistently inhabited long-term research station in space, and the first 'third generation' type space station, constructed over a number of years with a Space station#Modular....
, Russian cosmonauts flying on the shuttle and an American astronaut flying aboard a Soyuz spacecraft
Soyuz spacecraft

Soyuz ; English: Union) is a series of spacecraft designed for the Soviet space program by the S.P. Korolev Rocket and Space Corporation Energia....
 to engage in long-duration expeditions aboard Mir.

The program, sometimes called 'Phase One', was intended to allow the United States to learn from Russian experience into long-duration spaceflight and to foster a spirit of cooperation between the two nations and their respective space agencies
List of space agencies

This is a list of government agency engaged in activities related to outer space and space exploration.The name given is the English language version, with the native language version below....
, NASA
NASA

The National Aeronautics and Space Administration is an agency of the Federal government of the United States, responsible for the nation's public list of space agencies....
 and RKA. It would prepare the way for further cooperative space ventures; specifically, 'Phase Two' of the joint project, the construction of the International Space Station
International Space Station

The International Space Station is a research facility Assembly of the International Space Station in outer space. On-orbit construction of the station began in 1998, and is scheduled to be complete by 2011, with operations continuing until around 2015....
. Announced in 1993 with the first mission occurring in 1994, the program continued until its scheduled completion in 1998, and consisted of eleven shuttle missions, a joint Soyuz
Soyuz spacecraft

Soyuz ; English: Union) is a series of spacecraft designed for the Soviet space program by the S.P. Korolev Rocket and Space Corporation Energia....
 flight and almost 1000 days in space for American astronauts over seven expeditions.

During the four-year program, many 'firsts' in spaceflight were obtained by the two nations, including the first American astronaut to launch aboard a Soyuz spacecraft
Soyuz spacecraft

Soyuz ; English: Union) is a series of spacecraft designed for the Soviet space program by the S.P. Korolev Rocket and Space Corporation Energia....
, the largest spacecraft ever flown at that time in history, and the first American spacewalk using a Russian Orlan spacesuit
Orlan space suits

An Orlan space suit is a series of semi-rigid space suit models designed and built by NPP Zvezda. They have been used for extra-vehicular activity in the Soviet space program, its successor the Russian Federal Space Agency, and by space programs of other countries including the Chinese space program and NASA....
.

The program was, however, marred by various concerns, notably the safety of Mir following a fire and collision on board the station, financial issues with the cash-strapped Russian Space Program and worries from astronauts about the attitudes of the program administrators. Nevertheless, a large amount of science, expertise in space station construction and knowledge in working in a cooperative space venture was gained from the combined operations, allowing the construction of the ISS
International Space Station

The International Space Station is a research facility Assembly of the International Space Station in outer space. On-orbit construction of the station began in 1998, and is scheduled to be complete by 2011, with operations continuing until around 2015....
 to proceed much more smoothly than would have been likely.

Background

Atlantis Docked To Mir
In June 1992, American president
President of the United States

The President of the United States is the head of state and head of government of the United States and is the highest political official in the United States by influence and recognition....
 George H. W. Bush
George H. W. Bush

George Herbert Walker Bush served as the List of Presidents of the United States President of the United States from 1989 to 1993. Bush held a variety of political positions prior to his presidency, including Vice President of the United States in the administration of Ronald Reagan and Director of Central Intelligence under Gerald R....
 and Russian president Boris Yeltsin
Boris Yeltsin

Boris Nikolayevich Yeltsin was the first President of the Russian Federation, serving from 1991 to 1999.Yeltsin came to power with a wave of high expectations....
 agreed to join hands in space exploration
Space exploration

Space exploration is the use of astronomy and space technology to explore outer space. Physical exploration of space is conducted both by human spaceflights and by robotic spacecraft....
 by signing the "Agreement between the United States of America and the Russian Federation Concerning Cooperation in the Exploration and Use of Outer Space
Outer space

Outer space comprises the relatively empty regions of the universe outside the atmospheres of celestial bodies. Outer space is used to distinguish it from airspace and terrestrial locations....
 for Peaceful Purposes". The agreement called for the setting up a short, joint space program, during which one US astronaut
Astronaut

An astronaut or cosmonaut is a person trained by a List of human spaceflight programs to command, pilot, or serve as a crew member of a spacecraft....
 would board the Russian space station Mir and two Russian cosmonauts
Astronaut

An astronaut or cosmonaut is a person trained by a List of human spaceflight programs to command, pilot, or serve as a crew member of a spacecraft....
 would board a Space Shuttle
Space Shuttle

NASA's Space Shuttle, officially called the Space Transportation System , is the spacecraft currently used by the United States government for its human spaceflight missions....
. In September 1993, however, American Vice-president Al Gore
Al Gore

Albert Arnold "Al" Gore, Jr. is an United States environmentalism activist who served as the List of Vice Presidents of the United States Vice President of the United States from 1993 to 2001 under President of the United States Bill Clinton....
 and Russian prime minister Viktor Chernomyrdin
Viktor Chernomyrdin

Viktor Stepanovich Chernomyrdin is a Russian politician. Chernomyrdin was Prime Minister of Russia from 1992 to 1998. Since 2001, he has been Russia's ambassador to Ukraine....
 announced plans for a new space station, later to be called the International Space Station
International Space Station

The International Space Station is a research facility Assembly of the International Space Station in outer space. On-orbit construction of the station began in 1998, and is scheduled to be complete by 2011, with operations continuing until around 2015....
, or ISS. They also agreed that, in preparation for this new project, America would be largely involved in the Mir program in the years ahead, under the code name 'Phase One' (the construction of the ISS being 'Phase Two').

During the course of the program, eleven Space Shuttle missions flew to the station, carrying out crew exchanges, flying a docking module
Mir Docking Module

The Mir Docking Module ) was the sixth module launched to the Mir. It was launched on the Space Shuttle Atlantis on November 12, 1995 on mission STS-74....
 and a new set of solar arrays to Mir and conducting myriad scientific experiments aboard the space station. The program also saw the launch of two new modules, Spektr
Spektr

Spektr was the fifth module of the Mir Space Station. The module was designed for remote observation of Earth's environment containing atmospheric and surface research equipment....
 and Priroda
Priroda

The Priroda module was the seventh and final module of the Mir. Its primary purpose was to conduct Earth resource experiments through remote sensing and to develop and verify remote sensing methods....
, to Mir, which were used by American astronauts as living quarters and laboratories to conduct the majority of their science aboard the station. These missions allowed NASA
NASA

The National Aeronautics and Space Administration is an agency of the Federal government of the United States, responsible for the nation's public list of space agencies....
 and the Russian Federal Space Agency
Russian Federal Space Agency

The Russian Federal Space Agency , RKA, or RSA, formerly the Russian Aviation and Space Agency , is the government agency responsible for Russia's space science programme and general aerospace research....
 to learn a great deal about how best to work with international partners in space and how to minimise the risks associated with assembling a large space station — the ISS — in orbit.

In addition to these scientific advances, the program also served as a political ruse on the part of the American government
Federal government of the United States

The Federal Government of the United States is the central current reigning United States governmental body, established by the United States Constitution....
, providing diplomatic channel for NASA to take part in the funding of the cripplingly under-funded Russian space program. This in turn allowed the newly-fledged Russian government
Politics of Russia

The politics of Russia take place in a framework of a federation presidential system republic. According to the Constitution of Russia, the President of Russia is head of state, and of a multi-party system with executive power exercised by the government, headed by the Prime Minister, who is appointed by the President with the parliament's a...
 to keep Mir operating, in addition to the space program as a whole (a purpose which continues into Phase Two), ensuring the Russian government remained (and remains) friendly towards the United States.

Increments

In addition to the flights of the Shuttle to Mir, Phase One also featured seven 'Increments' aboard the station, long-duration flights aboard Mir by American astronauts. The seven astronauts who took part in the Increments, Norman Thagard
Norman Thagard

Norman Earl Thagard is an American scientist and former NASA astronaut. He is the first American to ride to space on board a Russian vehicle. He did this on March 14, 1995 in the Soyuz TM-21 spacecraft for the Russian List of Mir Expeditions mission....
, Shannon Lucid
Shannon Lucid

Shannon Matilda Wells Lucid is an United States biochemist and a NASA astronaut. At one time, she held the record for the longest duration stay in space by a woman....
, John Blaha, Jerry Linenger, Michael Foale
Michael Foale

Colin Michael Foale, Order of the British Empire, PhD, is an United Kingdom-United States astrophysicist and a NASA astronaut. He is a veteran of six space shuttle missions and extended stays on both Mir and the International Space Station....
, David Wolf
David Wolf

David Alexander Wolf is an United States astronaut and a veteran of four space shuttle missions and an extended stay aboard the Mir space station....
 and Andrew Thomas
Andy Thomas

Andrew "Andy" Sydney Withiel Thomas is an Australia United States aerospace engineer and a NASA astronaut. He became a U.S. citizen in December 1986, hoping to gain entry to NASA's astronaut program....
, were each flown in turn to Star City
Star City, Russia

Star City is a military research and training facility near Shchyolkovo in Moscow Oblast, Russia, some 32 km northeast of Moscow. Cosmonauts have lived and trained in Star City at the Gagarin Cosmonauts Training Centre since the 1960s....
, Russia
Russia

Russia , or the Russian Federation , is a list of countries spanning more than one continent country extending over much of northern Eurasia....
, to undergo training in various aspects of the operation of Mir and the Soyuz spacecraft
Soyuz spacecraft

Soyuz ; English: Union) is a series of spacecraft designed for the Soviet space program by the S.P. Korolev Rocket and Space Corporation Energia....
 used for transport to and from the Station. The astronauts also received practice in carrying out spacewalks outside Mir and lessons in the Russian language
Russian language

Russian is the most geographically widespread language of Eurasia, the most widely spoken of the Slavic languages, and the largest native language in Europe....
, which would be used throughout their missions to talk with the other cosmonauts aboard the station and Mission Control in Russia, the TsUP
Mission Control Center

A Mission Control Center is an entity that manages aerospace engineering vehicle flights. The MCC is often part of a national aerospace agency or a large aerospace company....
.

During their expeditions aboard Mir, the astronauts carried out various experiments, including growth of crops and crystals, and took hundreds of photographs of the Earth
Earth

Earth is the third planet from the Sun. Earth is the largest of the terrestrial planets in the Solar System in diameter, mass and density. It is also referred to as the World and Wiktionary:Terra.Note that by International Astronomical Union convention, the term "Terra" is used for naming extensive land masses, rather...
 spinning serenely beneath them. They also assisted in the maintenance and repair of the aging station, following various incidents with fires, collisions, power losses, uncontrolled spins and toxic leaks.

In all, the American astronauts would spend almost a thousand days aboard Mir, allowing NASA to learn a great deal about long-duration spaceflight, particularly in the areas of astronaut psychology and how best to arrange experiment schedules for crews aboard space stations.

Mir


Mir itself was the world's first modular space station, constructed between 1986 and 1996. It was humanity's first consistently inhabited long-term research station
Research station

A research station is a station built for the purpose of conducting scientific research on a given site, or aspects of the site. These sites might include outer space and oceans....
 in space, and currently holds the record for longest continuous human presence in space, at eight days short of 10 years. Mir's purpose was to provide a large and habitable scientific laboratory in space, and, through a number of collaborations, including Phase One, it was made internationally accessible to cosmonauts and astronauts of many different countries. The station existed until 23 March 2001, at which point it was deliberately deorbited, and broke apart during atmospheric re-entry.

Mir was based upon the Salyut
Salyut

The Salyut program was the first space station program undertaken by the Soviet Union, which consisted of a series of nine single-module space stations launched over a period of eleven years from 1971 to 1982....
 series of space stations previously launched by the Soviet Union
Soviet Union

The Union of Soviet Socialist Republics was a Constitution of the Soviet Union socialist state that existed in Eurasia from 1922 to 1991.The name is a translation of the , romanization of Russian Soyuz Sovetskikh Sotsialisticheskikh Respublik, abbreviated ????, SSSR....
 (seven Salyut space stations had been launched since 1971), and was mainly serviced by Russian-manned Soyuz spacecraft
Soyuz spacecraft

Soyuz ; English: Union) is a series of spacecraft designed for the Soviet space program by the S.P. Korolev Rocket and Space Corporation Energia....
 and Progress
Progress spacecraft

The Progress is a Russian expendable freighter spacecraft. The spacecraft is an unmanned resupply spacecraft during its flight but upon docking with a space station it allows astronauts inside, hence it is classified manned by the manufacturer....
 cargo ships. It was also anticipated that it would also be the destination for flights by the later-abandoned Buran space shuttle. The visiting US Space Shuttles used a Androgynous Peripheral Attach System
Androgynous Peripheral Attach System

The Androgynous Peripheral Attach System, or Androgynous Peripheral Assembly System, is a spacecraft docking mechanism used on the International Space Station....
 docking collar originally designed for Buran, mounted on a bracket originally designed for use with the American Space Station Freedom
Space Station Freedom

Space Station Freedom was the name given to NASA's project to construct a permanently manned Earth-orbiting space station. Although approved by then-president Ronald Reagan and announced in the 1984 State of the Union Address, Freedom was never constructed or completed as originally designed, and after several cutbacks, the remnants of the pr...
.

With the Space Shuttle docked to Mir the temporary enlargements of living and working areas amounted to a complex that was the world's largest spacecraft
Spacecraft

A spacecraft is a Craft or machine designed for spaceflight. On a sub-orbital spaceflight, a spacecraft enters outer space then returns to the Earth....
 at that time in space history, with a combined mass of 250 metric tonnes
Tonne

A tonne or metric ton , also referred to as a metric tonne, is a measurement of mass equal to 1,000 kilograms, or 2204.6226 pounds....
.

Space Shuttle

Sts 79 Rollout
NASA
NASA

The National Aeronautics and Space Administration is an agency of the Federal government of the United States, responsible for the nation's public list of space agencies....
's Space Shuttle, officially called the Space Transportation System (STS), is the United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
 government's current manned
Human spaceflight

A human spaceflight is a spaceflight with a Astronaut, and possibly passengers. This makes it unlike Robotic spacecraft space probes or remotely-controlled satellites....
 launch vehicle
Launch vehicle

In spaceflight, a launch vehicle or carrier rocket is a rocket used to carry a payload from the Earth's surface into outer space. A launch system includes the launch vehicle, the launch pad and other infrastructure....
. A total of five usable orbiters were built, of which three remain. The winged shuttle Orbiter
Space Shuttle Orbiter

The Space Shuttle orbiters are the orbital spacecraft of the Space Shuttle Space Shuttle program operated by NASA, the space agency of the United States....
 is launched vertically, usually carrying five to seven astronaut
Astronaut

An astronaut or cosmonaut is a person trained by a List of human spaceflight programs to command, pilot, or serve as a crew member of a spacecraft....
s (although eight have been carried and eleven could be accommodated in an emergency) along with up to 50,000 lb
Pound (mass)

The pound or pound-mass is a Units of measurement of massused in the Imperial unit, United States customary units and other systems of measurement....
 (22,700 kg) of payload into low earth orbit
Low Earth orbit

A Low Earth Orbit is generally defined as an orbit within the Locus extending from the Earth?s surface up to an altitude of 2,000 km. Given the rapid orbital decay of objects below approximately 200 km, the commonly accepted definition for LEO is between 160 - 2,000 km above the Earth surface....
. When its mission is complete, it fires its manoeuvring thrusters to drop out of orbit and re-enters
Atmospheric reentry

Atmospheric reentry refers to the movement of human-made or natural objects as they enter the atmosphere of a planet from outer space, in the case of Earth from an altitude above the "edge of space." This article primarily addresses the process of controlled reentry of vehicles which are intended to reach the planetary surface intact, but th...
 the Earth's atmosphere
Earth's atmosphere

The Earth's atmosphere is a layer of gases surrounding the planet Earth that is retained by the Earth's gravity. Dry air contains roughly 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% Carbon dioxide in the Earth's atmosphere, and trace amounts of other gases....
. During the descent and landing, the shuttle Orbiter acts as a glider
Glider aircraft

Glider aircraft are heavier-than-air craft that are supported in flight by the dynamic reaction of the air against their lifting surfaces, and whose free flight does not depend on an engine....
 and makes a completely unpowered landing.

The Shuttle is the first orbital spacecraft
Spacecraft

A spacecraft is a Craft or machine designed for spaceflight. On a sub-orbital spaceflight, a spacecraft enters outer space then returns to the Earth....
 designed for partial reusability
Reusable launch system

A reusable launch system is a launch system which is capable of launching a launch vehicle into space more than once. This contrasts with expendable launch systems, where each launch vehicle is launched once and then discarded....
. It carries large payloads to various orbits, and, during the Shuttle-Mir and ISS programs, provides crew rotation and carries various supplies, modules and pieces of equipment to the stations. Each Shuttle was designed for a projected lifespan of 100 launches or 10 years' operational life.

During the course of Phase One, Mir was visited by Space Shuttles Discovery
Space Shuttle Discovery

Space Shuttle Discovery is one of the three currently operational Space Shuttle orbiter in the Space Shuttle fleet of NASA, the space agency of the United States....
, Atlantis
Space Shuttle Atlantis

Space Shuttle Atlantis is one of the three currently operational Space Shuttle orbiter in the Space Shuttle fleet of NASA, the space agency of the United States....
 and Endeavour
Space Shuttle Endeavour

Space Shuttle Endeavour is one of the three currently operational Space Shuttle orbiter in the Space Shuttle fleet of NASA, the space agency of the United States....
, with Atlantis in particular flying seven straight missions to the station from 1995 – 1997. Space Shuttle Columbia
Space Shuttle Columbia

Space Shuttle Columbia was the first spaceworthy space shuttle in NASA's orbital fleet. Its first mission, STS-1, lasted from April 12 to April 14, 1981....
, the oldest and heaviest of the fleet, was incapable of efficient operations at Mirs (and later ISS's) 51.6 degree inclination and was not equipped with an external airlock, required for space station dockings.

Timeline


New cooperation begins (1994)

Phase One finally began on 3 February 1994 with the launch of Space Shuttle
Discovery
Space Shuttle Discovery

Space Shuttle Discovery is one of the three currently operational Space Shuttle orbiter in the Space Shuttle fleet of NASA, the space agency of the United States....
 on its 18th mission, STS-60
STS-60

STS-60 was the first mission of the US/Russian Shuttle-Mir Program, which carried the first Russian cosmonaut, Sergei K. Krikalev, to fly aboard a Space Shuttle....
, the first shuttle flight of that year. The eight-day mission was the first ever flight of a Russian Cosmonaut, Sergei Krikalev
Sergei Krikalev

Sergei Konstantinovich Krikalyov is a Russian cosmonaut and veteran of six space flights. He has spent more time in space than any other human being....
, aboard the American shuttle, and marked the opening of a new era in cooperative spaceflight for the two nations, thirty-seven years after the Space Race
Space Race

File:Space race1.jpgThe Space Race was a competition of space exploration between the Soviet Union and the United States, which lasted roughly from 1957 to 1975....
 began. As part of an international agreement
Treaty

A Treaty is an agreement under international law entered into by actors in international law, namely states and international organizations. A Treaty may also be known as: agreement, protocol, covenant, convention, exchange of letters, etc....
 on human space flight, the mission was the second flight of the Spacehab
SPACEHAB

Spacehab, Inc. is an aerospace company headquartered in Webster, Texas, Texas near the Johnson Space Center.SpaceHab provides commercial space products and services to NASA, the U.S....
 pressurised module and marked the 100th "Getaway Special
Getaway Special

NASA's Getaway Special program offers interested individuals or groups, opportunities to fly small experiments aboard the Space Shuttle....
" payload to fly in space. The primary payload for the mission, the Wake Shield Facility
Wake Shield Facility

Wake Shield Facility is an experimental science platform that was placed in Low Earth Orbit by the Space Shuttle. It is a 3.7 meter diameter, free-flying stainless steel disk....
, was designed to generate new semiconductor films for advanced electronics, and was flown at the end of
Discovery
s robotic arm over the course of the flight. During the mission, the astronauts aboard Discovery also carried out various experiments aboard the Spacehab
SPACEHAB

Spacehab, Inc. is an aerospace company headquartered in Webster, Texas, Texas near the Johnson Space Center.SpaceHab provides commercial space products and services to NASA, the U.S....
 module in the Orbiter's payload bay, and took part in a live bi-directional audio and downlink video hookup between themselves and the three Cosmonauts on board Mir, Valeri Polyakov, Viktor Afanasyev
Viktor M. Afanasyev

Viktor Mikhailovich Afanasyev is a colonel in the Russian Air Force, who is also a test cosmonaut of the Yu. A. Gagarin Cosmonaut Training Center....
 and Yury Usachev
Yury Usachev

Yuri Vladimirovich Usachev is a former cosmonaut who resides in Star City, Moscow....
 (flying Mir expeditions LD-4 and EO-15).

America arrives at Mir (1995)


1995 began with the launch, on February 3, of STS-63
STS-63

STS-63 was the second mission of the US/Russian Shuttle-Mir Program, which carried out the first rendezvous of the American Space Shuttle with Russia's space station Mir....
, the second Space Shuttle flight in the program and the first flight of the shuttle with a female pilot, Eileen Collins
Eileen Collins

Eileen Marie Collins is a retired United States astronaut and a retired United States Air Force Colonel. A former military instructor and test pilot, Collins was the first female pilot and first female commander of a Space Shuttle program....
. Referred to as the "near-Mir" mission, the flight saw the first rendezvous of a Space Shuttle with Mir during an eight day mission which carried Russian Cosmonaut Vladimir Titov
Vladimir Titov

Vladimir Georgiyevich Titov , Colonel, Russian Air Force, Ret., and former Russian astronaut was born January 1, 1947, in Sretensk, in the Chita Region of Russia....
 and the rest of
Discoverys crew to within of Mir, before Collins performed a flyaround of the station. The mission, a dress rehearsal for the first docked mission in the program, STS-71
STS-71

STS-71 was the third mission of the US/Russian Shuttle-Mir Program, which carried out the first Space Shuttle docking to Mir, a Russian space station....
, also carried out testing of various techniques and pieces of equipment that would be used during the docking missions that followed.

A few months after Discoverys flight, the March 14 launch of Soyuz TM-21
Soyuz TM-21

Soyuz TM-21 was Soyuz programme mission, a human spaceflight mission transporting personnel to the Russian space station Mir. Part of the USA/Russia Shuttle-Mir Program, the mission launched from Baikonur Cosmodrome, atop a Soyuz launch vehicle, at 06:11:34 UTC on March 14 1995....
 saw first launch of an American astronaut, Norman Thagard
Norman Thagard

Norman Earl Thagard is an American scientist and former NASA astronaut. He is the first American to ride to space on board a Russian vehicle. He did this on March 14, 1995 in the Soyuz TM-21 spacecraft for the Russian List of Mir Expeditions mission....
, aboard a Soyuz spacecraft
Soyuz spacecraft

Soyuz ; English: Union) is a series of spacecraft designed for the Soviet space program by the S.P. Korolev Rocket and Space Corporation Energia....
. The flight carried expedition EO-18 to
Mir, consisting of Cosmonauts Vladimir Dezhurov
Vladimir Dezhurov

Vladimir Nikolayevich Dezhurov was born on July 30, 1962 in the settlement of Yavas, Zubovo-Polyansky District, Mordovia, Russia. He attended and graduated from the S.I. Gritsevits Kharkov Higher Military Aviation School in 1983 with a pilot engineer?s diploma....
 & Gennady Strekalov
Gennady Strekalov

Gennady Mikhailovich Strekalov was an Instructor-Test-Cosmonaut and Department Head at Russian aerospace firm RSC Energia. He has been decorated twice as Hero of the Soviet Union ....
 along with Thagard, ready for the first American Increment of the program. During the course of their 115 day expedition, the
Spektr
Spektr

Spektr was the fifth module of the Mir Space Station. The module was designed for remote observation of Earth's environment containing atmospheric and surface research equipment....
science module (which served as living and working space for American astronauts) was launched aboard a Proton rocket
Proton rocket

The Proton rocket is a rocket used in an expendable launch system for both commercial and Russian government launches. The first Proton was launched in 1965 and the launch system is still in use as of 2009, which makes it one of the most successful heavy boosters in the history of spaceflight....
 and docked to
Mir, along with more than 1500 pounds of research equipment from America and other nations. The expedition's crew returned to Earth aboard Space Shuttle Atlantis
Space Shuttle Atlantis

Space Shuttle Atlantis is one of the three currently operational Space Shuttle orbiter in the Space Shuttle fleet of NASA, the space agency of the United States....
 following the first Shuttle-Mir docking during mission STS-71
STS-71

STS-71 was the third mission of the US/Russian Shuttle-Mir Program, which carried out the first Space Shuttle docking to Mir, a Russian space station....
.

The primary objectives of STS-71
STS-71

STS-71 was the third mission of the US/Russian Shuttle-Mir Program, which carried out the first Space Shuttle docking to Mir, a Russian space station....
, launched on 27 June, were to rendezvous Space Shuttle Atlantis
Space Shuttle Atlantis

Space Shuttle Atlantis is one of the three currently operational Space Shuttle orbiter in the Space Shuttle fleet of NASA, the space agency of the United States....
 with Mir and, on 29 June, perform the first docking between an American Space Shuttle and the station, the first US-Russian docking since the Apollo-Soyuz Test Project
Apollo-Soyuz Test Project

mission_name = ASTP Apollo|insignia = ASTPpatch.png|crew_size = 3|command_module = CMmass |spacecraft_mass = total...
 in 1975. Following docking on June 29, Atlantis delivered expedition EO-19 to Mir, consisting of two cosmonauts, Anatoly Solovyev
Anatoly Solovyev

Anatoly Yakovlevich Solovyev is a former Russian pilot, cosmonaut, and Colonel. Solovyev holds the world record on the number of extra-vehicular activity performed , and accumulated time spent spacewalking ....
 & Nikolai Budarin
Nikolai Budarin

Nikolai Mikhailovich Budarin is a Russian cosmonaut, a veteran of three extended space missions aboard the Mir Space Station and the International Space Station....
, carried out on-orbit joint US-Russian life sciences investigations aboard a Spacelab
Spacelab

Spacelab was a reusable laboratory flown into space on the Space Shuttle. It allowed scientists to perform experiments in microgravity in Earth orbit....
 module, performed a logistical resupply of the station and picked up American astronaut Norman Thagard & the rest of the EO-18 crew for their return to Earth.

The final Shuttle flight of 1995, STS-74
STS-74

STS-74 was a Space Shuttle Space Shuttle Atlantis mission to the Mir space station. It was the fourth mission of the US/Russian Shuttle-Mir Program, and it carried out the second docking of a Space Shuttle to Mir....
, began with the November 12 launch of Space Shuttle Atlantis, and delivered the Russian-built Docking Module
Mir Docking Module

The Mir Docking Module ) was the sixth module launched to the Mir. It was launched on the Space Shuttle Atlantis on November 12, 1995 on mission STS-74....
 to Mir, along with a new pair of solar arrays and other hardware upgrades for the station. The Docking Module was designed to provide more clearance for Shuttles in order to prevent any collisions with Mir's solar arrays during docking, a problem which had been overcome during STS-71
STS-71

STS-71 was the third mission of the US/Russian Shuttle-Mir Program, which carried out the first Space Shuttle docking to Mir, a Russian space station....
 by relocating the station's Kristall
Kristall

The Kristall module was the fourth module and the third major addition to the Mir. As with previous modules, its configuration was based on the 77K module, and was originally named "Kvant 3"....
 module to a different location on the station. The module, attached to Kristalls docking port, prevented the need for this procedure on further missions. During the course of the flight, nearly 1000 pounds of water were transferred to Mir and experiment samples including blood, urine and saliva were moved to Atlantis for return to Earth.

Priroda, fire and collision (1996–1997)

1996 saw the beginning of the continuous US presence aboard Mir, with STS-76
STS-76

STS-76 was a NASA Space Shuttle mission to the Russia Space Station Mir. The mission was flown with Space Shuttle Space Shuttle Atlantis. It was the 76th shuttle mission and 16th mission for Atlantis....
, launching on March 22, carrying the second Increment astronaut, Shannon Lucid
Shannon Lucid

Shannon Matilda Wells Lucid is an United States biochemist and a NASA astronaut. At one time, she held the record for the longest duration stay in space by a woman....
, to the station. The third docking mission, which again used Space Shuttle
Atlantis
Space Shuttle Atlantis

Space Shuttle Atlantis is one of the three currently operational Space Shuttle orbiter in the Space Shuttle fleet of NASA, the space agency of the United States....
, demonstrated logistics capabilities with a Spacehab
SPACEHAB

Spacehab, Inc. is an aerospace company headquartered in Webster, Texas, Texas near the Johnson Space Center.SpaceHab provides commercial space products and services to NASA, the U.S....
 module, and placed experiment packages on
Mir
s docking module during the first docked spacewalk, as well as transferring Lucid to Mir for her stay. The spacewalks, carried out from Atlantis's crew cabin, provided experience for astronauts in order to prepare for later assembly missions to the International Space Station
International Space Station

The International Space Station is a research facility Assembly of the International Space Station in outer space. On-orbit construction of the station began in 1998, and is scheduled to be complete by 2011, with operations continuing until around 2015....
.

In a record-breaking stay, Lucid became the first American woman to live on station, and, following a six-week extension to her Increment due to issues with Shuttle Solid Rocket Boosters
Space Shuttle Solid Rocket Booster

The Space Shuttle Solid Rocket Boosters are the pair of large solid rocket booster used by the Space Shuttle during the first two minutes of powered flight....
, her 188-day mission set the US single spaceflight record. During Lucid's time aboard Mir, the Priroda
Priroda

The Priroda module was the seventh and final module of the Mir. Its primary purpose was to conduct Earth resource experiments through remote sensing and to develop and verify remote sensing methods....
 module, with about 2200 pounds of US science hardware, was docked to Mir. Lucid made use of both Priroda and Spektr to carry out 28 different science experiments and serve as the US living quarters.

Lucid's stay aboard the station finally came to a halt with the flight of
Atlantis on STS-79
STS-79

STS-79 was a Space Shuttle Space Shuttle Atlantis mission to the Mir space station. It was the first shuttle mission to dock with Mir once it was fully assembled....
, which launched on September 16, and was the first Shuttle mission to carry a double Spacehab
SPACEHAB

Spacehab, Inc. is an aerospace company headquartered in Webster, Texas, Texas near the Johnson Space Center.SpaceHab provides commercial space products and services to NASA, the U.S....
 module. During the mission, more than 4000 pounds of supplies were transferred to
Mir, including water generated by Atlantis
s fuel cell
Fuel cell

A fuel cell is an Electrochemistry conversion device. It produces electricity from fuel and an Oxidizing agent , which react in the presence of an electrolyte....
s, and experiments including investigations into superconductors
Superconductivity

Superconductivity is a phenomenon occurring in certain materials generally at very low temperatures, characterized by exactly zero electrical resistance and the exclusion of the interior magnetic field ....
, cartilage
Cartilage

Cartilage is a type of dense connective tissue. It is composed of specialized cells called chondrocyte that produce a large amount of extracellular matrix composed of collagen fibers, abundant ground substance rich in proteoglycan, and elastin fibers....
 development, and other biology studies. About 2000 pounds of experiment samples and equipment were also transferred back from Mir to Atlantis, making the total 6000 pound transfer the most extensive yet.

This, the fourth docking, also saw John Blaha transferring onto Mir to take his place as resident Increment astronaut, with his stay on the station improving operations in several areas, including transfer procedures for a docked space shuttle, "hand-over" procedures for long duration American crew members and "Ham" amateur radio
Amateur radio

Amateur radio, often called Etymology of ham radio, is both a hobby and a service in which participants, called "hams," use various types of radio communications equipment to communicate with other radio amateurs for Public services, recreation and self-training....
 communications.

During his time aboard the station, two spacewalks were carried out in order to remove electrical power
Electric power

Electric power is defined as the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt .When electric current flows in a circuit, it can transfer energy to do mechanical work or work ....
 connectors from a 12-year old solar power
Solar power

Solar energy is the radiant light and heat from the Sun that has been harnessed by humans since ancient history using a range of ever-evolving technologies....
 array on the base block and reconnect the cables to the more efficient new solar power arrays recently delivered to the station. In all, Blaha spent four months with the Mir-22 Cosmonaut crew conducting material science, fluid science
Fluid mechanics

Fluid mechanics is the study of how fluids move and the forces on them. Fluid mechanics can be divided into fluid statics, the study of fluids at rest, and fluid dynamics, the study of fluids in motion....
, and life science research, before returning to Earth the next year aboard Atlantis on STS-81
STS-81

STS-81 was a Space Shuttle Space Shuttle Atlantis mission to the Mir space station....
.

The year 1997 would prove to be an interesting one for the program, beginning with the first Shuttle flight for that year, STS-81, replacing Increment astronaut John Blaha with Jerry Linenger, after Blaha's 118-day stay aboard Mir. During this fifth docking of a shuttle, the crew of Atlantis moved supplies to the station and returned to Earth the first plants to complete a life cycle in space, a crop of wheat planted by Shannon Lucid. During five days of mated operations, the crews transferred nearly 6000 pounds of logistics to Mir, and transferred 2,400 pounds of materials back to Atlantis (the most materials transferred between the two spacecraft to that date).

The STS-81 crew also tested the Shuttle Treadmill Vibration Isolation
Vibration isolation

Vibration isolation is the process of isolating an object, such as a piece of equipment, from the source of vibrations....
 and Stabilization System (TVIS), designed for use in the Zvezda module of the International Space Station. The shuttle's small vernier jet thrusters were also fired during the mated operations to gather engineering data for 'reboosting' the ISS. After undocking, Atlantis performed a fly-around of Mir, leaving Linenger aboard the station for the most eventful Increment to date.

During his Increment, Linenger became the first American to conduct a spacewalk from a foreign space station and in a non-American made spacesuit, performing the first test of the Russian-built Orlan-M
Orlan space suits

An Orlan space suit is a series of semi-rigid space suit models designed and built by NPP Zvezda. They have been used for extra-vehicular activity in the Soviet space program, its successor the Russian Federal Space Agency, and by space programs of other countries including the Chinese space program and NASA....
 spacesuit alongside Russian cosmonaut Vasili Tsibliyev
Vasili Tsibliyev

Vasily Vasiliyevich Tsibliyev ; born in Orekhovka, Crimea, Ukrainian SSR on February 20, 1954) is a Russian cosmonaut of Ukrainian descent.He was selected as a cosmonaut on March 26, 1987....
. All three crewmembers of expedition EO-23 also performed a "fly-around" in the Soyuz spacecraft, first undocking from one docking port of the station, then manually flying to and redocking the capsule at a different location. This made Linenger the first American to undock from a space station aboard two different spacecraft (Space Shuttle and Soyuz).

However, the Increment did not go smoothly, with Linenger and his Russian crewmates Vasili Tsibliyev
Vasili Tsibliyev

Vasily Vasiliyevich Tsibliyev ; born in Orekhovka, Crimea, Ukrainian SSR on February 20, 1954) is a Russian cosmonaut of Ukrainian descent.He was selected as a cosmonaut on March 26, 1987....
 & Aleksandr Lazutkin
Aleksandr Lazutkin

Aleksandr Ivanovich Lazutkin is a Russian cosmonaut.He was selected as cosmonaut on March 3, 1992. His first spaceflight was Soyuz TM-25, on which he was the flight engineer....
 facing several difficulties including the most severe fire ever aboard an orbiting spacecraft (caused by a backup oxygen-generating device), failures of various on board systems, a near collision with a Progress
Progress spacecraft

The Progress is a Russian expendable freighter spacecraft. The spacecraft is an unmanned resupply spacecraft during its flight but upon docking with a space station it allows astronauts inside, hence it is classified manned by the manufacturer....
 resupply cargo ship during a long-distance manual docking system test and a total loss of station electrical power and, as a result, attitude control, resulting in a slow, uncontrolled "tumble" through space.

Linenger was eventually succeeded by Anglo-American astronaut Michael Foale
Michael Foale

Colin Michael Foale, Order of the British Empire, PhD, is an United Kingdom-United States astrophysicist and a NASA astronaut. He is a veteran of six space shuttle missions and extended stays on both Mir and the International Space Station....
, carried up by Atlantis on STS-84
STS-84

STS-84 was a Space Shuttle Space Shuttle Atlantis mission to the Mir space station....
, alongside Russian mission specialist Elena Kondakova. The STS-84 crew transferred 249 items between the two spacecraft, along with water, experiment samples, supplies and hardware. One of the first items transferred to Mir was an Elektron oxygen-generating unit, especially important after the fire that had occurred on February 23. In addition, during undocking on May 21, the crew stopped Atlantis three times while backing away, to collect data from a European sensor device designed for future rendezvous of ESA's Automated Transfer Vehicle
Automated Transfer Vehicle

The Automated Transfer Vehicle or ATV is an expendable, unmanned resupply spacecraft developed by the European Space Agency . ATVs are designed to supply the International Space Station with propellant, water, air, payload and experiments....
 (ATV) with the International Space Station.

Foale's Increment proceeded fairly normally until June 25, when during the second test of the Progress manual docking system, TORU, the resupply ship collided with solar arrays on the Spektr
Spektr

Spektr was the fifth module of the Mir Space Station. The module was designed for remote observation of Earth's environment containing atmospheric and surface research equipment....
module and crashed into the module's outer shell, holing the module and causing a depressurisation of the station, the first ever on-orbit depressurisation in the history of spaceflight. Only quick actions on the part of the crew, cutting cables leading to the module and closing Spektr's hatch, prevented the crew abandoning the station in their Soyuz lifeboat. Their efforts stabilised the station's air pressure, whilst the pressure in Spektr, containing many of Foale's experiments and personal effects, dropped to a vacuum. Fortunately, food, water and other vital supplies were stored in other modules, and remarkable salvage and replanning effort by Foale and the science community maximized the scientific return.

In an effort to restore some of the power and systems lost following the isolation of
Spektr and to attempt to locate the leak, Mir's new commander Anatoly Solovyev
Anatoly Solovyev

Anatoly Yakovlevich Solovyev is a former Russian pilot, cosmonaut, and Colonel. Solovyev holds the world record on the number of extra-vehicular activity performed , and accumulated time spent spacewalking ....
 and flight engineer
Flight engineer

In aviation, a flight engineer is a member of the aircrew member of some aircraft. The flight engineer is responsible for monitoring and controlling many of the aircraft systems during flight....
 Pavel Vinogradov
Pavel Vinogradov

Pavel Vladimirovich Vinogradov is a cosmonaut. , he was one of the top 25 astronauts in terms of total time in space.Vinogradov graduated from Moscow Aviation Institute in 1977....
 carried out a risky salvage operation later in the mission, entering the empty module during a so-called "IVA" spacewalk, inspecting the condition of hardware and running cables through a special hatch from
Spektr's systems to the rest of the station. Following these first investigations, Foale and Solovyev conducted a 6-hour EVA on the surface of Spektr to inspect the damage to the punctured module.

After the disasters, the US Congress and NASA considered whether the US should abandon the program out of concern for astronauts' safety, but NASA administrator Daniel Goldin
Daniel Goldin

Daniel Saul Goldin served as the 9th and longest-tenured Administrator of NASA from April 1, 1992, to November 17, 2001. He was appointed by President George H....
 decided to continue the program, with the next flight, STS-86
STS-86

STS-86 was a Space Shuttle Space Shuttle Atlantis mission to the Mir space station. This was the last Atlantis mission before it was taken out of service temporarily for maintenance and upgrades, including the glass cockpit....
, bringing Increment astronaut David Wolf
David Wolf

David Alexander Wolf is an United States astronaut and a veteran of four space shuttle missions and an extended stay aboard the Mir space station....
 aboard
Mir.

The decision to proceed with NASA's participation on the Mir was not universally accepted within NASA and NASA's Office of Inspector General, which launched an investigation of the Mir as a result of the fire, continued to investigate the Mir through the collision and beyond. Originally this investigation was conducted by NASA's OIG's Criminal Investigation Division, but subsequently NASA's Inspection's Division took over the lead and published several reports.

STS-86 performed the seventh Shuttle-Mir docking, the last of 1997. During Atlantiss stay crew members Titov and Parazynski conducted the first joint US-Russian extravehicular activity during a Shuttle mission, and the first in which a Russian wore a US spacesuit. During the 5-hour spacewalk on, the pair affixed a 121-pound Solar Array Cap to the Docking Module
Mir Docking Module

The Mir Docking Module ) was the sixth module launched to the Mir. It was launched on the Space Shuttle Atlantis on November 12, 1995 on mission STS-74....
, for a future attempt by crew members to seal off the leak in Spektr's hull. The mission returned Foale to Earth, along with samples, hardware, and an old Elektron oxygen generator, and dropped Wolf off on the Station ready for his 128 day Increment. Wolf had originally been scheduled to be the final
Mir astronaut, but was chosen to go on the Increment instead of astronaut Wendy Lawrence. Lawrence was deemed ineligible for flight due to a change in Russian requirements after the Progress supply vehicle collision. The new rules required that all Mir crew members should be trained and ready for spacewalks, but a Russian spacesuit suit could not be prepared for Lawrence in time for launch.

Phase One closes down (1998)


The final year of Phase One began with the flight of Space Shuttle
Endeavour
Space Shuttle Endeavour

Space Shuttle Endeavour is one of the three currently operational Space Shuttle orbiter in the Space Shuttle fleet of NASA, the space agency of the United States....
 on STS-89
STS-89

STS-89 was a Space Shuttle mission to the Mir space station flown by Space Shuttle Space Shuttle Endeavour, and launched from Kennedy Space Center, Florida on January 22, 1998....
. The mission delivered Cosmonaut Salizhan Sharipov
Salizhan Sharipov

Salizhan Shakirovich Sharipov is a Russian astronaut. Although he lives in Kyrgyzstan, he is from a minority Uzbek group. He is married to Nadezhda Mavlyanovna Sharipova....
 to
Mir and replaced David Wolf with Andy Thomas
Andy Thomas

Andrew "Andy" Sydney Withiel Thomas is an Australia United States aerospace engineer and a NASA astronaut. He became a U.S. citizen in December 1986, hoping to gain entry to NASA's astronaut program....
, following Wolf's 119 day Increment.

During his Increment, the last of the program, Thomas worked on 27 science investigations the areas of advanced technology, Earth science
Earth science

Earth science , is an all-embracing term for the sciences related to the planet Earth . It is arguably a special case in planetary science, the Earth being the only known life-bearing planet....
s, human life sciences, microgravity research, and ISS risk mitigation. His stay on
Mir, considered the smoothest of the entire Phase One program, featured weekly "Letters from the Outpost" from Thomas and passed two milestones for length of spaceflight — 815 consecutive days in space by American astronauts since the launch of Shannon Lucid on the STS-76 mission in March 1996, and 907 days of Mir occupancy by American astronauts dating back to Norman Thagard's trip to Mir in March 1995.

Thomas finally returned to Earth on the final Shuttle-Mir mission, STS-91
STS-91

STS-91 was the final Space Shuttle mission to the Mir space station. It was flown by Space Shuttle Space Shuttle Discovery, and launched from Kennedy Space Center, Florida, on June 2, 1998....
. The mission closed out Phase One, with the EO-25 and STS-91 crews transferring water to
Mir and exchanging almost 4700 pounds of cargo experiments and supplies between the two spacecraft. Long-term American experiments that had been on board Mir were also moved into Discovery, being stored within the shuttle's middeck lockers and Spacehab module. When the hatches closed for undocking at 9:07 a.m. EDT on June 8 and the spacecraft separated at 12:01 p.m. EDT that day, the final set of Shuttle-Mir docked operations was concluded and Phase One of the International Space Station program came to an end.

Phases Two & Three: ISS (1998–2010)

With the landing of Discovery
Space Shuttle Discovery

Space Shuttle Discovery is one of the three currently operational Space Shuttle orbiter in the Space Shuttle fleet of NASA, the space agency of the United States....
 on June 12, 1998, the Phase One program concluded. However, the techniques learned and equipment developed during the program would continue to assist in the development of space exploration with the beginning of Phase Two on November 20, 1998. That day saw the launch of a Russian Proton rocket
Proton rocket

The Proton rocket is a rocket used in an expendable launch system for both commercial and Russian government launches. The first Proton was launched in 1965 and the launch system is still in use as of 2009, which makes it one of the most successful heavy boosters in the history of spaceflight....
 carrying the first module of the International Space Station
International Space Station

The International Space Station is a research facility Assembly of the International Space Station in outer space. On-orbit construction of the station began in 1998, and is scheduled to be complete by 2011, with operations continuing until around 2015....
, the Zarya
Zarya

Zarya , also known as the Functional Cargo Block or the FGB , was the first module of the International Space Station to be launched. The FGB provided electrical power, storage, propulsion, and guidance to the International Space Station during the initial stage of assembly....
 Functional Cargo Block. This first module of the ISS module provided electrical power, storage, propulsion, and guidance to the ISS during its initial stage of assembly, and provides the functional backbone to the station.

As of February 2008, the International Space Station consists of eight pressurised modules, three solar arrays & a large truss structure, and is already the largest spacecraft assembled in history. The arrival of the Destiny Laboratory Module
Destiny Laboratory Module

The Destiny module is the primary operating facility for United States research payloads aboard the International Space Station . It was berthed to the Unity module and activated over a period of five days in February, 2001....
 in 2001 marked the end of Phase Two and the start of Phase Three, the final outfitting of the station, currently in progress. The completed station will consist of five laboratories and be able to support six crew members. With over 1,000 cubic metre
Cubic metre

The cubic metre is the SI derived unit of volume. It is the volume of a cube with edges one metre in length. An alternative name, which allowed a different usage with SI prefix, was the st?re....
s (1,300 cu yd
Cubic yard

A cubic yard is an Imperial unit / U.S. customary unit unit of volume, used in the United States, Canada, and the UK. It is defined as the volume of a cube with sides of 1 yard in length....
) of pressurised volume and a mass of 400,000 kilograms (882,000 lb) the completed station will be almost twice the size of the combined Shuttle-Mir spacecraft. Phases Two & Three are intended to continue both international cooperation in space and zero-gravity scientific research, particularly regarding long-duration spaceflight. The results of this research will provide considerable information for long-duration expeditions to the Moon
Moon

The Moon is Earth's only natural satellite and the List of natural satellites by diameter satellite in the Solar System. The average centre-to-centre distance from the Earth to the Moon is km, about thirty times the diameter of the Earth....
 and flights to Mars
MARS

In cryptography, MARS is a block cipher that was IBM's submission to the Advanced Encryption Standard process. MARS was selected as an AES finalist in August 1999, after the AES2 conference in March 1999, where it was voted as the fifth and last finalist algorithm....
.

Following the intentional deorbiting of Mir on March 23, 2001, the ISS became the only space station currently in orbit around Earth. Mirs legacy lives on in the station, bringing together five space agencies in the cause of exploration and allowing those space agencies to prepare for their next leap into space, to the Moon, Mars and beyond.

Controversy


Safety and scientific return

Throughout its course, the program received much criticism over the safety of the aging
Mir, particularly following the fire aboard the station and collision with the Progress supply vessel in 1997.

The fire, caused by the malfunction of a backup solid-fuel oxygen generator
Chemical oxygen generator

A chemical oxygen generator is a device that releases oxygen created by a chemical reaction. The oxygen source is usually an inorganic superoxide, chlorate or perchlorate....
 (SFOG), burned for, according to various sources, between ninety seconds and fourteen minutes, and produced large amounts of toxic smoke that filled the station for around forty-five minutes. This forced the crew to don respirators, which themselves also presented areas of concern, due to the fact that some of the respirator masks initially worn by the astronauts were broken. Of still further concern was the fact that fire extinguisher
Fire extinguisher

A fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations. It is not intended for use on an out-of-control fire, such as one which has reached the ceiling, endangers the user , or otherwise requires the expertise of a fire department....
s fixed to the walls of the modules were found to be immovable. In addition, the fire occurred during a time when crews were switching over, and as such there were six men aboard the station rather than the usual three — with the fire blocking off access to one of the docked Soyuz lifeboats. If evacuation of the station had been necessary, only half of the crew would have been able to escape. A similar occurrence had occurred on an earlier
Mir expedition, although in that case the SFOG burned for only a few seconds.

The near-miss and collision incidents presented further safety issues. Both were caused by failure of the same piece of equipment, the TORU manual docking system, which was undergoing tests at the time. The tests were called in order to gauge the performance of long-distance docking in order to enable the cash-strapped Russians to remove the expensive
Kurs
Kurs (docking system)

Kurs is a radio telemetry system used by the Russian space program.Kurs was developed by the Research Institute of Precision Instruments prior to 1985 and manufactured by the Kiev Radio Factory....
 automatic docking system from the Progress ships. The press at the time seized upon this untested technology as still further demonstrations of
Mir
s unwieldiness.

The accidents also added to the increasingly vocal criticism of the dying station's reliability — originally designed to fly for five years, Mir eventually flew for three times that length of time. During the time of Phase One and afterward, the station was showing her age — constant computer crashes, loss of power, uncontrolled tumbles through space and leaking pipes were an ever-present concern for crews. The air supply aboard the station also presented a cause for worry, due to various breakdowns of Mirs Elektron oxygen-generating system. These breakdowns led crews to become increasingly reliant on the SFOG systems that had caused the fire in 1997, and continue to be a problem aboard the ISS, which uses the same system as part of its life-support equipment.

Another issue of controversy directed at the program was the scale of its actual scientific return, particularly following the loss of the
Spektr science module. Astronauts, managers and various members of the press all complained that the benefits of the program far outweighed the risks associated with it, especially considering the fact that most of the US science experiments had been contained within the holed module. As such, a large amount of American research was inaccessible, vastly reducing the science that could be performed above the station, rendering, in the eyes of the press, the program obsolete.

The safety issues at various times caused NASA
NASA

The National Aeronautics and Space Administration is an agency of the Federal government of the United States, responsible for the nation's public list of space agencies....
 to reconsider the future of the program, and, although it was eventually decided to continue, the agency came under fire from various areas of the press regarding that decision.

Attitudes

The attitudes of both the Russian space program and NASA towards Phase One was also of concern to the astronauts involved. Due to Russia's financial issues, it was considered by many at the TsUP
Mission Control Center

A Mission Control Center is an entity that manages aerospace engineering vehicle flights. The MCC is often part of a national aerospace agency or a large aerospace company....
 that the mission hardware and continuation of
Mir was of more importance than the lives of the cosmonauts aboard her, and as such the program was run in a very different way to the American style — cosmonauts found their days being planned for them down to the minute, actions (such as docking) which would be performed manually by shuttle pilots were all carried out automatically, and cosmonauts had their pay docked upon return to Earth if they made any errors during their flights. Americans had found, in the past, notably aboard Skylab
Skylab

Skylab was the first space station the United States launched into orbit, and the second space station ever visited by a human crew. The 100 ton space station was in Earth's orbit from 1973 to 1979, and it was visited by crews three times in 1973 and 1974....
, that this was not a productive way for work to be carried out, and had since made the plans more flexible. The Russians, however, would not budge, and many felt that significant work time was lost because of this.

In addition, astronaut Jerry Linenger felt that, following the two accidents in 1997, the Russian authorities attempted a coverup of the accidents in an effort to downplay their significance, fearing that the Americans would back out of the partnership. A large part of this 'coverup' was the seeming impression that the American astronauts were not in fact 'partners' aboard the station, but were instead 'guests'. NASA staff did not find out for several hours about the fire and collision after they occurred, and found themselves kept out of decision-making processes. They eventually managed to get themselves involved when attributing the blame for the collision — Russian mission controllers had intended to place the accident entirely on the shoulders of Vasily Tsibliyev, and it was only after the application of significant pressure from NASA that this stance was changed.

Nevertheless, NASA itself was not without flaws regarding Phase One — at various times during the program, managers and personnel found themselves limited in terms of resources and manpower, particularly as Phase Two geared up, and had a hard time getting anywhere with the NASA administration. One particular area of contention was the Director of the Flight Crew Operations Directorate, George Abbey
George Abbey

George Washington Sherman Abbey was born in Seattle, Washington USA in 1932. Director of the Lyndon B. Johnson Space Center Flight Crew Operations Directorate , presiding from the first group of space shuttle astronauts in 1978 through 1988....
, who assigned crews to missions. He was despised by many astronauts in NASA due to his methods of choosing crews for flights — many found themselves grounded merely for upsetting him in some way. Astronauts felt that this prevented many of the best astronauts from flying in the roles they would be best suited to, and that the program as a whole suffered because of him.

Finances

Another area of significant controversy regarding the program was the financial state of Russia's space program — since the breakup of the Soviet Union a few years earlier, the Russian economy
Economy of Russia

Russia is a unique emerging market, in the sense that being the nucleus of a former superpower shows more anomalies. On one hand, its exports are primarily resource based, and on the other, it has a pool of technical talent in aerospace, nuclear engineering, and basic sciences....
 had been slowly collapsing, with the budget for space exploration being reduced by around 80%. Before and after Phase One, a great deal of Russia's space finances came from flights of astronauts from Europe and other countries, with one Japanese TV station
Television station

A television station is a type of broadcast station that Broadcastings both sound and video to television receiver s in a particular area. Traditionally, TV stations made their broadcasts by sending specially-encoded radio signals over the air, called terrestrial television....
 paying $9.5 million to have one of their reporters flown aboard
Mir. By the start of Phase One, the problem had become so bad that cosmonauts regularly found their missions extended to save money on launchers, the six-yearly flights of the Progress
Progress spacecraft

The Progress is a Russian expendable freighter spacecraft. The spacecraft is an unmanned resupply spacecraft during its flight but upon docking with a space station it allows astronauts inside, hence it is classified manned by the manufacturer....
 had been reduced to three, and there was a distinct possibility of
Mir herself being sold, to the tune of around $500 million.

Critics argued that the $325 million contract NASA had with Russia was the only thing keeping the Russian space program alive, and only the Space Shuttle was keeping
Mir aloft. Astronauts training at Star City
Star City, Russia

Star City is a military research and training facility near Shchyolkovo in Moscow Oblast, Russia, some 32 km northeast of Moscow. Cosmonauts have lived and trained in Star City at the Gagarin Cosmonauts Training Centre since the 1960s....
 certainly got this impression, with NASA having to pay hefty fees for training manual
Training manual

A training manual is a book or booklet of instructions, designed to improve the quality of a performed task. Training manuals are widely used, including in business and the military....
s and equipment. Problems came to a head when it was revealed by ABC's
Nightline that there was a distinct possibility of embezzlement of American finances by the Russian authorities in order to build a suite of new cosmonaut houses in Moscow
Moscow

Moscow is the capital and the largest types of inhabited localities in Russia of the Russian Federation. It is also the largest European cities and metropolitan areas, with the Moscow metropolitan area ranking among the largest urban areas in the world....
, or else that the building projects were being funded by the Russian Mafia
Russian Mafia

The Russian Mafia , Red Mob or Bratva ? often transliterated as Mafya or Mafiya ? are names designating a diverse group of organized crime syndicates originating in the former Soviet Union ....
. NASA administrator Goldin was invited onto the programme to defend the homes, and refused to comment, although NASA's office for external affairs was quoted as saying that "What Russia does with its own money is their business."

Missions





External links

  • (NASA
    NASA

    The National Aeronautics and Space Administration is an agency of the Federal government of the United States, responsible for the nation's public list of space agencies....
    )