Next week, Europe will fly its first mission to the Jupiter system to explore the gas giant and three of its intriguing moons. This "means that we have seen the spacecraft for the last time ever," ESA ...

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 ...

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 ...

Still seven years from Jupiter, the JUICE mission is pretending it's already there. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Though it's ...

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, ...

Looking for a sky event this week? Check out our full Sky This Week column. December 5: Mercury improving This evening brings ...

The waning moon shines close to the king of the planets on Dec. 7. Don't miss Jupiter shining close to the waning gibbous ...

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 ...

Witness the celestial spectacle of Jupiter shining brightly near the waning gibbous moon in the Gemini constellation on ...

If you're looking for him, Peter can usually be found dropping hot in Apex Legends with his friends. A fan of games of all types including JRPGs, third-person shooters and survival horror, Peter is a ...