Turn a telescope to the eastern sky in the hours following midnight on Nov. 5 to see two colossal shadows darken the cloud ...

Trapped in a gravitational push and pull between Jupiter and other Jovian moons, Io is constantly being stretched and ...

On the early hours of November 5, Jupiter's moons Io and Europa will cast their shadows over the planet's cloud surface, visible through a telescope.

The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world one of chaos and violence. The brutal conditions also make Io intriguing to ...

A NASA spacecraft made its closest-ever approach to Jupiter's moon Io, coming within 930 miles of the "surface of the most volcanic world," and the space agency released new images of the flyby. The ...

An illustration shows NASA's Juno spacecraft as it makes a flyby of the Jovian moon Io. NASA's Juno mission will come closer to Jupiter's moon Io than any spacecraft has in around 20 years on Saturday ...

NASA's Juno spacecraft recently whizzed past the moon Io. Every night's a marvelous time for a moon dance at Jupiter. Jupiter's moon Io displays a volcanic surface including large, dark patches of ...

The last time a spacecraft got this close to Jupiter's moon Io was more than 20 years ago, a blink of an eye on a typical geological timescale. Most planetary bodies in our Solar System wouldn't ...

The images Juno captured of the scene are absolutely amazing. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA's Juno spacecraft has now paid ...

Jupiter's super-volcanic moon boasts grand, meandering dunes created not by wind but by lava flows beneath the moon's surface, a new study shows. Io is Jupiter's third-largest moon and the innermost ...

image: As the Cassini spacecraft gets closer to Jupiter, details heretofore not noticed are becoming obvious. The Great Red Spot, which only a week or two earlier appeared to lack features, is now ...