Jupiter’s moon Io is the most volcanically active world in the Solar System. The gravitational tug-of-war between Jupiter and ...

NASA's Juno spacecraft has spotted the most powerful volcanic eruption ever seen on the solar system's most volcanic body, the Jovian moon Io.

NASA’s Juno mission found Io’s biggest volcanic eruption ever. The explosion was stronger than all Earth’s power plants ...

Loki Patera is 202 kilometres (126 mi) in diameter, covers 20,000 sq km (7,700 sq mi), and was the largest volcanic feature found on Io until these new observations revealed the hot spot in the south ...

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 ...

In May, Juno returned an image of the moon Amalthea above Jupiter’s “Great Red Spot.” According to NASA, a tiny potato-shaped moon with a radius of just 52 miles (84 kilometers), Amalthea is ...

Using his celestial observations, including the discovery of Jupiter’s satellites, Galileo came up with a book titled Siderius ... these Jovian moons are still referred to as the Medicean ...

These pinpricks of light are actually Jupiter's four largest moons, now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Many of these celestial orbs are as remarkable as Jupiter ...