Special offer: Complimentary Access to PopSci+ for a limited time » ISS astronauts lost the crew lock bag during a seven-hour spacewalk. Thankfully, it only contained tethers and tool sockets.

Spacefaring countries have for decades been sending thousands upon thousands of satellites and other objects into orbit, where they have become an integral component of modern society. From ...

If you were told that a New Hampshire startup launched its first payload Saturday en route to creating autonomous robots that can fix satellites in orbit, where would you think it was located?

There are millions of pieces of space junk orbiting Earth these days, so what’s one more bit of detritus amidst the trash cloud? According to NASA’s recent spacewalk debriefing, International ...

There are millions of pieces of space junk orbiting Earth these days, so what’s one more bit of detritus amidst the trash cloud? According to NASA’s recent spacewalk debriefing, International Space ...