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Trivia in orbit: How well do you know the ISS?

This quiz will test your grasp of everything from orbital mechanics and international partnerships to basic facts about the ...

Removing these 50 objects from orbit would cut danger from space junk in half

A new listing of the 50 most concerning pieces of space debris in low-Earth orbit is dominated by relics more than a ...

OTD in Space - October 4: Sputnik 1 Becomes 1st Human-Made Satellite to Orbit the Earth

On Oct. 4, 1957, the Soviet Union launched Sputnik 1, the satellite that started the Space Race. Sputnik 1 was the first ...