| Mir is the largest and longest-lasting space station
ever built. Mir, a Russian station, became a base for international cooperation
in exploring space,including dockings by United States space shuttles.
The station consists of a number of separately launched spacecraft or modules.
An assembly of the permanent modules, a Soyuz-TM vehicle for transporting
crew members, and a remote-controlled Progress supply ship measures 107
feet (33 meters) in length. Mir is Russian for peace. |
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| The Soviet Union began to assemble Mir during
the years of the "space race" competition between the Soviet Union and
the United States. The first module went into orbit in 1986. The Soviets
intended to operate Mir for five years. But the Soviet Union collapsed
in 1991, and what became the Russian space industry went into decline.
As a result, the Russians extended Mir's lifetime, rather than build another
station. |
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| Equipment breakdowns and human errors led to several
accidents. In an especially dangerous accident in June 1997, a Progress
ship collided with a module known as Spektr. The crash opened a small hole
in the module, which began to leak air. The crew quickly sealed off Spektr.
Today it remains abandoned. |
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| The first part of Mir to go into orbit was the
Core Module, or Base Block. This module is a modified version of Salyut
space stations that the Soviets orbited from 1971 to 1982. The module has
docking ports at both ends. Docked at one end is the Kvant 1 laboratory
and life-support module, which was launched in 1987. Kvant 1 has a second
docking port for Progress ships and other vehicles. |
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| Attached at the other end of the Core Module is
the Transfer Node, a large, hollow ball with five docking ports and a door
to the Core Module. All the ports face different directions, like the sides
of a cube. The port oppposite the Core Module is available for Soyuz-TM
vehicles. Permanently docked at the other four ports are (1) Kvant 2, a
lab with a large airlock and life-support facilities, launched in 1989;
(2) Kristall, launched in 1990 as a docking module for a planned Soviet
shuttle; (3) Spektr, a science laboratory, launched in 1995; and (4) the
Priroda earth observatory, launched in 1996. In 1995, the U.S. shuttle
Atlantis left a special docking module attached to Kristall for future
shuttle flights. |
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| Mir's orbit is about 235 miles (375 kilometers)
above the earth. The orbit takes Mir as far from the equator as 52 north
latitude and 52south latitude. The station flies around the earth in
about 90 minutes. |
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Russia's Mir Space Station (Mir means peace in
Russian) has been in orbit for 15 years. The first element of the station
was launched in February 20th 1986 at an inclination of 51.6 degrees. The
current Mir Space Station is actually a complex of different modules that
have been pieced together.
Mir History Cont. >> |
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