Two planets stand side by side as the evening twilight continues to delight and colorful stars shine in the sky this week.

So, if astrobiologists ever do find alien life with a weird chemistry that uses some liquid other than water, it's not likely ...

Social media users were floored by the incredible image captured in the viral post, with one saying: "I honestly gasped hard.

Ahead of its dance with Saturn on Feb. 24, Mercury should be seen on Feb. 19 at magnitude -1.2 with binoculars 20 minutes ...

"Pale Blue Dot" – one of the last photos taken by Voyager 1 – is still the most distant image of the Earth. Astronomer Carl ...

Death Valley Dark Sky Festival returns once again for stargazers and enthusiasts asking the question, "what wonders are beyond our world?" ...

You shouldn't set your expectations too high, but it will give you enough of a taste to see whether you want to invest in ...

James Webb Space Telescope and the W.M. Keck Observatory captured new images of Saturn's moon Titan. Credit: NASA/STScI/W. M. Keck Observatory/Judy Schmidt | edited by Space.com's Steve Spaleta ...