A FIERY hell-world that would instantly roast visitors alive has a vast lava ocean – and may be packed with rare gems. The ...

Astronomers are just beginning to scratch the surface of the complex, and sometimes violent, relationships between planets ...

Planet hunters have grown used to strange worlds, but a handful of discoveries now point to something even more radical: ...

A new study of the red dwarf system TOI-3884 has uncovered rare, persistent spot-crossing signals that reveal unusually detailed information about the star’s magnetic activity and the planet’s orbital ...

Ultra-hot Jupiters — named as such because of their physical similarities to the planet Jupiter — are exoplanets that orbit stars other than the sun with temperatures so high that the molecules in ...

Astronomers have discovered a distant exoplanet with a tail that stretches over 5.5 million miles long. Credit: Jose-Luis Olivares / MIT illustration Astronomers have accidentally found a planet with ...

14 Herculis c one of at least two gas giants – both significantly bigger than Jupiter – that have been observed orbiting a central star in an X-like pattern. Among the nearly 6,000 exoplanets so far ...