It's unlikely you'll be able to walk outside and see a line of planets, but according to NASA, a seven-planet parade happening tonight could be visible in some form in parts of the U.S. The upcoming ...

Astronomers have been scouring the outer solar system for signs of a hypothetical ninth planet for almost a decade, without success. However, we may finally be on the cusp of finding it, experts say.

INDIANA, USA — As soon as the sun sets, step outside and look up to witness a rare celestial event: full planetary alignment. Between Feb. 23 and Feb. 28, 2025, all seven planets will align in the ...

Many New Yorkers lament the longer nights that begin this month with the end of daylight saving time. But for astronomy buffs, the extra hour starting Sunday is a gift that brings more time to gaze at ...

Our dark skies will be even darker this summer. Most of the visible planets in our solar system are slowly disappearing from the night sky, in what some astronomers call a “planet dry summer” that ...

Every planet in our solar system is essentially round. But out in the universe, are there any planets that aren't spherical? Technically, planets are round, by definition; they need to have enough ...