Interstellar space is unforgivingly vast, but the emptiness has some advantages. The lack of atmosphere means there is no aerodynamic drag.

Humanity's quest to explore other star systems up close is still in its infancy. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It's still ...

The Pentagon on 22 May 2026 released a second trove of once-classified images and video footage of unexplained flying objects ...

Amazon founder Jeff Bezos wants to have millions of people living and working in space — that’s why he founded… Read More NASA says its Voyager 2 probe has become the second human-made object to fly ...

Add Yahoo as a preferred source to see more of our stories on Google. A large silver rocket flies through a golden morning sky. SpaceX's Starship megarocket could eventually live up to its bold name. ...

Alpha Centauri sits more than four light-years away, close enough to fascinate generations of dreamers and far enough to make today’s rockets look painfully limited. At current speeds, a trip there ...