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

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

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

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 ...

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 of the gas giant: they are the Galilean moons, four of the 95 natural ...

This shift explains how the asteroid ended up on a collision course with Earth. Who knows, if not for Jupiter, perhaps the dinosaurs would still roam our planet! The Chicxulub crater, located beneath ...

The planets are set to align tonight when Mars, Jupiter, Uranus, Venus, Neptune, Mercury, and Saturn form a parade which will ...

NASA is currently struggling with restoring communications with its Moon orbiter that was built for an important mission. The ...

With high carbon dioxide, low oxygen and no photosynthesis, here’s how an entire ecosystem persists in Movile Cave, one of the most extreme environments on Earth.

But get this! A new study proves it wasn’t a comet and didn’t come from anywhere near Jupiter like we initially thought. So strap in your asteroid belts and prepare to have your galaxy brain blown!