The first exoplanet ever discovered in 1995 was what we now call a "hot Jupiter," a planet as massive as Jupiter with an ...

An eye-catching pattern on the surface of Europa, an ice-covered moon, may have profound implications for our understanding ...

Hot Jupiters rank among the strangest planets astronomers have ever found. They are gas giants as massive as Jupiter, yet ...

Hot Jupiters were once cosmic oddities, but unraveling how they moved so close to their stars has remained a stubborn mystery ...

Interstellar object 3I/ATLAS is expected to make its closest pass of the Earth just under a month from now, coming within around 170 million miles of us. Three months later, it’s expected to get even ...

Simulations reveal that Jupiter’s rapid growth disrupted the early solar system, creating rings where new planetesimals formed much later than expected. These late-forming bodies match the ages and ...