Five things to know about the International Space Station
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Here are some key facts about the orbiting laboratory set up to advance space exploration - and prepare to send humans to Mars - where Russians and Americans have worked together for a quarter of a century.
Russia is scrambling to bring home three astronauts -- two Russians and one American -- who are stuck aboard the International Space Station after a meteorite damaged the spacecraft that was due to return them to Earth. Here are some key facts about the orbiting laboratory set up to advance space exploration - and prepare to send humans to Mars - where Russians and Americans have worked together for a quarter of a century. - Size of a football field - The ISS is the largest man-made structure ever put into orbit. Launched in 1998 by the United States, Russia, Canada,...