Lake Effect astronomy contributor Jean Creighton shares some myths behind some of our solar system’s most famous moons and ...

Currently, Hamilton is working on two NASA Discovery mission concepts: The Io Volcano Observer, which would travel to Jupiter’s moon Io to study processes of active volcanism and tidal heating ...

Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about geologically active moons.

Whereas Io is the poster child for this mechanism, tidal heating also heats many other worlds, including Io’s neighbor, the icy moon Europa, where the heat is thought to sustain a subterranean ...

Striking image and video of 'Steeple Mountain' on Jupiter's moon Io are concept art — but authentic pics do exist According to NASA, the massive mountain on the Jovian moon stands between 3 and ...

NASA's Europa Clipper spacecraft (illustrated here with Jupiter in the background) will come within 16 miles of the moon's surface.

Jupiter moon of Io is famed for its volcanoes. NASA just spotted the most powerful one yet Not only was the hot spot larger than Earth’s Lake Superior, but it also was seen belching out ...

Marius, the man who named Jupiter’s Galilean moons German astronomer Simon Marius is best remembered for his disputes with Galileo Galilei over priority for discovering Jupiter’s four major moons.

Discovered by Galileo in 1610, Europa is one of the four so-called Galilean moons of Jupiter, along with Ganymede, Io and Callisto. Seeking conditions that support life ...