Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a dramatic planetary breakup.

Dwarf planet Ceres now appears less like a dead rock and more like a world that may have briefly brimmed with potential for life When you purchase through links on our site, we may earn an affiliate ...

After marking the 30th anniversary of the discovery of the first exoplanet around a sun-like star, we now look forward to what the next 30 years might offer. When you purchase through links on our ...

By tracking tiny stellar wobbles, astronomers have detected planets forming around young stars for the first time.

Just two decades after astronomers discovered the first exoplanet, NASA has confirmed the existence of 6,000 alien worlds. The total will rise even quicker as next-generation telescopes take flight.

My favorite thing to do every night is to look up at the sky to see the stars and the moon. Something is awe-inspiring about thinking about one's future while peering up at the night sky. I recall ...

Nestled 1,000 light-years from Earth, a massive, chaotic disk is offering scientists a unique glimpse into the birthplace of ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...