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

A total lunar eclipse occurs this month. Venus transitions from evening to morning, while Mars and Jupiter dominate the late ...

Dust off your old telescope on a clear night and look up. If you find Jupiter, you’ll likely see four small dots to the side ...

But in the grand scheme of the solar system, Earth's Moon isn't as big as you might think. Oberon is Uranus’s second-largest ...

NASA’s Galileo spacecraft, which was designed to study the large, gaseous planet Jupiter and its moons, first caught hints of ...

Callisto, one of Jupiter’s largest moons, looks like a boring, crater-filled world. It doesn’t seem to have much going on ...

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

There are holes and rough spots throughout the alley. There is a hole, actually it’s becoming a crater, that belongs on the moon, behind the old Phoenix restaurant. If you do not know the alley ...

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, NASA's ...

Hazards include high levels of volcanic gas, falling volcanic fragments near the vents, unstable crater walls, ground cracking and potential rockfalls — especially around areas that have been ...

Recent discoveries, powered by artificial intelligence, have revealed a new crater on Mars that evidences how deeply impact-generated seismic waves can travel. This finding challenges existing models ...