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 ...

Callisto, the outermost of Jupiter’s 95 moons, first caught NASA’s attention back in the 1990s when the Galileo spacecraft detected an unusual response to the planet’s shifting magnetic field.

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

(Lead image: The Callisto demonstration in front of the ‘Commander’ mannequin inside the Orion spacecraft during Artemis I. Credit: NASA) ...

Now, researchers are more optimistic than ever that Callisto is a water world. Future missions like NASA's Europa Clipper and the European Space Agency's (ESA) JUICE are set to confirm whether ...

New evidence from an old NASA mission supports the theory that Jupiter's moon Callisto is in fact an ocean world.

NASA's Europa Clipper is about to use Mars ... in addition to its larger cousins Ganymede and Callisto — performed a daring "first-ever double gravity assist maneuver" around the Earth to ...

Space missions have set out to search for alien life in the hidden oceans across our solar system - and now, researchers might have a new one to investigate. A new study has strengthened the ...