An international group of researchers is calling on the United Nations to include the protection of Earth's orbit in the U.N.

NASA According to the European Space Agency (ESA), more than 170 million pieces of space junk are currently orbiting Earth. But what is that debris exactly, and how did it get there? Is the ...

Just this November, an incoming piece of space junk prompted the International Space Station to take action to maneuver itself out of harm's way. A Russian cargo ship docked at the space station fired ...