A new study suggests mysterious water worlds may be manufacturing their own oceans through chemical reactions deep within ...

Astronomers have seen what appears to be a forming planet carving out a complex pattern in a disk of gas and dust around a young star. The discovery of this spiral architect could help us better ...

A strange 200 million-year-old object with the mass of a planet has been discovered 20 light-years from Earth, outside our solar system. The "rogue," as it's referred to by researchers, is producing ...

Exoplanets are planets outside Earth's solar system. In 1995, a gas giant named 51 Pegasi b, which orbits a star similar to Earth's sun, etched its name in history as the first exoplanet ever ...