Our solar system is home to worlds that are incredibly strange compared to what we’re familiar with. While Earth is […] ...

This space documentary explores some of the most extraordinary exoplanets and cosmic destinations discovered across the Milky Way. The journey begins in the Kuiper Belt before traveling to Proxima ...

Mercury doesn't give up its secrets easily. The smallest planet in our solar system is also one of the most extreme—a sun-scorched, metal-rich world with a puzzling magnetic field and lavas unlike ...

Astronomers have catalogued more than five thousand planets orbiting distant stars, and a handful of them defy almost ...

A mysterious "rogue" planet has been observed gobbling six billion tons of gas and dust a second—an unprecedented rate that blurs the line between planets and stars, astronomers said Thursday. Unlike ...

A bizarre planetary pairing 190 light-years away is challenging everything astronomers thought they knew about how worlds form. A “lonely” hot Jupiter — typically found without nearby companions — is ...

Two newly confirmed "super-puff" planets are so diffuse that they are less dense than cotton candy, despite being about the size of Jupiter. Their rare orbital relationship and enormous, lightweight ...