The MIR station was in low earth orbit ( about 300 km or 200 miles) and traveled at 17,200 mph (27,700 km/hr), about the same as the space shuttle.
In 1986, the Soviet Union launched a space station into space. That is a place where astronauts can eat and sleep during their missions. Mir was supposed to orbit earth for five years, but with repairs it orbited earth for fifteen years. Mir was finally abandoned in 2001. It fell safely to the earth. ''Mir'' is the Russian word for ''peace.''
A space station
The Mir was launched by the Soviet Union.
Orbits within the atmosphere are not stable due to atmospheric friction. Friction slows (and heats) the satellite, dropping its orbit still lower (where there's more friction, therefore more slowing and heating). Eventually the satellite burns up. This is essentially what happened to Skylab and more recently to Mir.
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They usually get their energy from the Sun, but they may also have a nuclear reactor. That's how they get their energy; how they work in detail would depend on what they are supposed to do. There are satellites for many different purposes.
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It was sent up for pertection from the aleans.
Mir was launched in 1986, and remained in orbit until March 2001 when it burned up in the earth's atmosphere after it was intentionally de-orbited when its orbit became too low.
Mir
The Mir space station, once it was no longer maintained did not maintain it's orbit. As it's orbit decayed it entered the Earth's atmosphere. Frictional heating caused the space station to burn and break up.
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