A NASA astronaut captured a fascinating weather phenomenon that still has scientists scratching their heads. Nichole Ayers is ...

NASA astronauts Nichole Ayers, Jonny Kim and Anne McClain marked Independence Day with a few heartfelt words for their ...

These things take millions of years to go from one stellar neighborhood to another, so this thing has likely been traveling ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...