Almost like those old dial-up modems, right? A NASA space probe called Juno captured this when it flew past Ganymede earlier this year. Ganymede is actually the largest moon in the solar system. It's ...

Could the icy moons of our solar system hold life beyond our planet? Keith Cooper looks at how planetary scientists plan to ...

A 4-billion-year-old volcano? New research finds that Io, the solar system’s most volcanically active moon, can brag just that. A recent study of Io’s sulfurous atmosphere suggests that Jupiter’s moon ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The Juno mission ...

Neptune’s supersonic winds and icy storms revealed a planet so extreme that it forever changed our picture of the solar ...

If you look up on a clear night, the brightest and largest object in the sky will probably be the moon. And unless you have a decent telescope, it is the only natural satellite you can see with your ...

Io is the most volcanic body known to science, and researchers have puzzled over its history for years. A new report suggests it was born this way. This image revealing the north polar region of the ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial rocks reveals. When you purchase through links on our site, we may earn an ...