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

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 ...

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

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

Two planets stand side by side as the evening twilight continues to delight and colorful stars shine in the sky this week.

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

Each day, you can view different details of the lunar surface. The lunar seas and the larger, more discernible craters are the most noticeable. In the days after new-moon, the crescent moon phase ...

The Callisto Protocol failed to meet sales expectations, leading to layoffs, and the studio's future project may be at risk of being canceled. Update: Krafton sent a statement about the layoffs ...