Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don’t ...

Scientists have used data from NASA's retired planet-hunting space telescope 'Kepler' to discover that small and large worlds have very different upbringings. The team found that larger planets on non ...

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...

Astronomers have been left puzzled by the discovery of an unusually large planet orbiting a remarkably small star, a cosmic pairing that defies existing theories of planetary formation. The star, ...

New research finds that certain large exoplanets are shrinking due to internal processes, creating an abundance of rocky 'super-Earths'. When you purchase through links on our site, we may earn an ...

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 ...

Scientists find that deep molten rock can power long-lasting magnetic fields, helping large rocky planets hold onto their ...