If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's second-largest moon has more impact craters on its surface than any other planetary ...

Europa, one of Jupiter’s intriguing moons, is hiding an ocean beneath its icy shell — an ocean that might harbor alien life.

Scientists have long thought that our solar system's ocean worlds, such as Jupiter's moon Europa and Saturn's moon Enceladus, ...

Astrobiologist Joshua Sebree of the University of Northern Iowa suggests that South Dakota's Wind Cave exhibits chemical ...

Liftoff! NASA's Europa Clipper Sails Toward Ocean Moon of Jupiter Oct. 14, 2024 — NASA's Europa Clipper has embarked on its long voyage to Jupiter, where it will investigate Europa, a moon with ...

Europa is the sixth largest satellite in our Solar System and the smallest of Jupiter’s four Galilean moons. Discovered by ...

Currently, some of the best contenders for life in Earth’s backyard are celestial bodies that have subsurface water oceans, which planetary scientists call ocean worlds. One of these candidates is ...

Io’s long-debated magma ocean may not exist. Juno spacecraft data reveals that tidal forces deform the moon differently than expected if a magma ocean were present. Instead, Io’s mantle appears mostly ...

This maneuver is designed to adjust the spacecraft's trajectory and position it for a critical phase in its 1.8-billion-mile (2.9-billion-kilometer) trek to the Jupiter system. However ...

Scientists estimate there are ~1 septillion (1 followed by 24 zeros) planets in the observable universe. This figure is based ...

is journeying toward Jupiter’s moon Europa to study its icy surface and hidden ocean. Currently over 13 million miles from Earth, the spacecraft has successfully deployed its solar arrays ...

Discovered by Galileo Galilei in 1610, Io, Callisto, Europa and Ganymede ... and Ganymede, Jupiter’s largest moon, appears to have an internal ocean that potentially contains more water than ...