The outer space around the Earth is already pretty crowded. Now, tech firms are racing to add more. There are already thousands of satellites hurdling around the Earth in low orbit - many of them are ...

Elisha Sauers writes about space for Mashable, taking deep dives into NASA's moon and Mars missions, chatting up astronauts ...

SAN DIEGO — The toxic plume from the Tijuana River can be seen from outer space. An image from NASA shows the plume flowing off south of Imperial Beach and spreading into the Pacific Ocean. NASA's ...

Why is NASA so worried about space microbes? How much damage could an extra-terrestrial microorganism do here on Earth? And ...

After suffering an emergency in space, it took NASA nine months to rescue its stranded astronauts. China took nine days.

Earlier this year, NASA’s Dawn mission finally entered into Ceres’ orbit. Since then, the dwarf planet has offered nothing but mysteries, the latest of which is a three-mile-high pyramid on Ceres’ ...

CAPE CANAVERAL, Florida -- As more companies start selling tickets to space, a question looms: Who gets to call themselves an astronaut? It's already a complicated issue and about to get more so as ...

Junk is accumulating in space at a fantastic pace, with millions of pieces orbiting the Earth, and humans need to figure out ...

NASA’s Voyager 1 space probe will continue its almost half-century of service by delivering yet another milestone.