Nearly one third of known exoplanets are enormous gas giants, similar to Jupiter or Saturn. But whereas our solar system ...

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter" — in 2016, but have continued to investigate this ...

Using the Gemini South telescope, researchers found that the "hot and puffy" ultra-hot Jupiter planet WASP-121b may have formed closer to its star than previously believed, challenging what we ...

WASP-121b is like nothing in the solar system, raining liquid metal and being puffy like a marshmallow. The origins of these ...