They expect that this dark matter cloud, technically a Reionization-Limited H I Cloud (RELHIC), is a primordial remnant of a ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a ...

SpaceX streamed video of the Tesla Roadster in space after the launch. Time flies when you're floating aimlessly through the cold, inhospitable wasteland that is space. And it's already been seven ...

A has been around since the Chernobyl explosion and Space Shuttle Challenger accident...but perhaps not for much longer.

The world’s premier space observatory has spotted a mysterious and huge, free-floating planetary-mass object that’s “just 20 light-years from Earth,” NASA announced. Researchers recently used the ...

Being an astronaut is an inherently dangerous thing, and everyone in this line of work knows it. Dangers comes in all shapes and sizes, but they mostly have to do with the people taking part in ...