If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's ...

Dec. 9, 2024 — A NASA Hubble Space Telescope observation program called OPAL (Outer Planet Atmospheres Legacy) obtains long-term baseline observations of Jupiter, Saturn, Uranus, and Neptune in ...

New evidence from an old NASA mission supports the theory that Jupiter's moon Callisto is in fact an ocean world. Credit: NASA / JPL / DLR A moon of Jupiter about the size of Mercury likely has a ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The International Astronomical Union officially recognized 128 new moons orbiting ...

Kellie Gerardi of Jupiter, is her own kind of astronaut, one who marries science and sparkle and who wants to show other girls the way to the stars.

This phenomenon, known as a 'planetary parade' is a rare sight, and it will be the last time seven planets can be seen ...

Fermin had two doubles in five at-bats and drove in four runs, three coming on his second double, to lead the Cardinals to the victory. Fermin raised his spring average to .257 while Barrero, who was ...