Callisto, Jupiter's second-largest moon, may have a rocky surface with an ocean beneath the surface. If there was a contest for the most interesting moon in our solar system, Callisto would be a ...

Tonight, the Moon and Jupiter will have a close celestial encounter. This rare pairing can even be enjoyed with a naked eye.

NASA’s Juno spacecraft has successfully found and characterised the auroral “footprints” of Jupiter’s moon Callisto for the first time. This discovery completes the “family portrait” of auroral ...

Long posited as a potential human outpost in science fiction, Jupiter’s icy moon of Callisto largely remains a mystery to real life planetary scientists. As one of the least studied of Jupiter and ...

Next week, Europe will fly its first mission to the Jupiter system to explore the gas giant and three of its intriguing moons. The European Space Agency (ESA)-led Jupiter Icy Moons Explorer spacecraft ...

Tonight, the Moon will pass close to bright Jupiter, offering stargazers a striking and easily visible sight. This naked-eye event will make two of the night sky’s brightest objects appear side by ...

The moon, just hours past its last quarter phase, will rise above the east-northeastern horizon shortly before midnight local ...

Tonight, skywatchers will be treated to a stunning spectacle as the Moon and Jupiter align in the night sky. Just hours after ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Scientists simulate thermal, energetic components of Jovian magnetospheric plasma irradiating Callisto's atmosphere Differential number flux spectra for (a) protons, (b) oxygen ions, (c) sulfur ions, ...

Callisto's shadow will follow along Jupiter's south-south temperate belt from 9:09 p.m. to 12:54 a.m. tonight Feb. 22-23, 2014. A smaller telescope magnifying around 60x or higher will show it. Credit ...