Did NASA discover city lights on an alien planet? This video explores the implications and details of the findings that ...

You’ve traveled thousands of light-years through interstellar star systems. And now you’re stranded on a planet you know nothing about. As long as you’ve got oxygen, water and food aboard your ...

"It was just a matter of time before we found them." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Thirty years ago, on Oct. 6, 1995, the very ...

The Penn State-led Habitable Zone Planet Finder (HPF) provides the highest precision measurements to date of infrared signals from nearby stars. Pictured: The HPF instrument during installation in its ...