Our Solar System is plunging into chaos. Better hang on tight. The planets are getting knocked out of orbit. What could ...

That raises the possibility that the TRAPPIST-1e exoplanet could also have liquid water and therefore support life.

Early results on the fourth planet from the TRAPPIST-1 star suggest it lost its original atmosphere to space long ago, and it ...

New research using NASA's powerful JWST telescope has identified a planet 41 light years away which may have an atmosphere.

Mars is known for its barren desert landscape and dry climate. But two recent studies in the journals Nature and Science go ...

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting to ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

Skywatchers who spotted the Jupiter-Venus conjunction on Aug. 12 are in for a dazzling display in the night sky through the end of August, with a "planet parade" building in the eastern sky, with ...

What planetary treat is happening in the night sky over California and the rest of the Northern Hemisphere How to see planets with the naked eye Why Pluto isn't part of the 2025 - or any other - ...