orbiting Jupiter

NASA releases new images of solar system’s “most volcanic world”

Daisy Hips

A NASA spacecraft made the closest-ever approach to Jupiter’s moon Io in decades, coming within 930 miles of the “surface ...

NASA missions spy a ghostly hand and creepy face in the cosmos

Daisy Hips

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