NASA's Juno spacecraft has discovered a giant volcanic hot spot on the surface of Jupiter's hellish moon Io. The eruptions in ...

There are 79 known moons of Jupiter, not counting a number of moonlets likely shed from the inner moons, and S/2003 J 24, whose orbital elements have not yet been published. All together, they form a ...

NASA officials said what Juno spotted was 'the most powerful volcanic event ever recorded on the most volcanic world in our ...

There are currently 92 moons known to orbit Jupiter. The four largest – Io, Europa, Ganymede and Callisto – were discovered by Galileo Galilei in 1610 when he pointed the first astronomical telescope ...

This week, NASA released the first image from the Europa Clipper spacecraft's voyage. The image is a mosaic of a star field, created from three shots the solar-powered orbiter captured in December of ...

About the same diameter as Earth’s moon, the innermost of Jupiter’s four giant moons is covered in volcanoes, some emitting sulfurous plumes hundreds of miles into space. It’s been imaged by ...

Galileo’s repeated observations over several nights and realized they were moons orbiting the gas giant. And thus, Io, Europa and Ganymede became known as the Galilean moons of Jupiter.

The moon will pass closely by Jupiter this evening (Jan. 10), meeting up with the gas giant in the constellation Taurus. The moon will pass closely by Jupiter this evening (Jan. 10), meeting up ...

the school bus-sized probe captured stunning images of Jupiter’s dynamic atmosphere and the fiery surface of its moon, Io. The data, sent back as Juno entered its final year of exploration ...