Young Jupiter’s powerful magnetic field may have created a safe zone where several large moons could survive. Saturn lacked ...

What if Jupiter’s 79 moons weren’t gravitationally bound to Jupiter? What if they became rogue objects orbiting on their own ...

The newly found object, estimated to be roughly as massive as Jupiter, orbits a brown dwarf—a "failed star"—which in turn ...

The subsurface findings could transform how scientists study volcanoes across the solar system — including those on Earth.

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of Uranus and its five largest moons, Miranda, Ariel, Umbriel, Titania and Oberon. In an alternate timeline, ...

NASA’s Juno spacecraft measured heat below Io’s surface for the first time and found temperatures rise sharply just a few ...

A NASA probe peered beneath the surface of the most volcanic world in the solar system, revealing scorching heat rising from ...

A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor. We already know a decent amount about how planets form, but moon ...

There’s no mistaking Jupiter in the sky these winter evenings, rising in the southeast as evening twilight ends. In fact, you should be able to easily see it long before twilight fades. Jupiter is by ...

There’s no mistaking Jupiter in the sky these Pottsville winter evenings, rising in the southeast as evening twilight ends. In fact you should be able to easily see it long before twilight fades.