Research and development is underway to create robots that can hunt for signs of life in the vast oceans that exist under the ...

Pluto and its largest moon Charon could have come together via a 10-hour “kiss-and-capture” encounter after a grazing ...

Nearly 415 years ago to the day astronomer Galileo Galilei discovered the moons surrounding Jupiter looking through his homemade telescope.

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

As its name suggests, the mission’s target is Europa, one of the biggest of Jupiter’s 95 known moons. Europa is a snowball slightly smaller than Earth’s moon. It has an atmosphere that is ...

This means the gravitational force that it feels from Jupiter changes throughout its orbit, twisting and squeezing the interior of the moon, which results in energy being released as heat.

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

The Hubble Space Telescope took this photo of stripey Jupiter and its moon Europa in August 2020. The Great Red Spot, a large hurricane-like storm currently about the size the Earth, shows at bottom.

When you buy through links on our articles, Future and its syndication partners may earn a commission. Jupiter's volcanic moon Io doesn't appear to have a subsurface ocean of magma, resolving some ...