Besides Europa, these include Ganymede and Callisto ... to assess whether the moon is the sort of place where life might ...

German astronomer Simon Marius is best remembered for his disputes with Galileo Galilei over priority for discovering Jupiter ...

Io's volcanic activity explained without magma ocean evidence Tidal heating powers volcanic eruptions on Jupiter's moon ...

NASA's recent flybys of Io, however, reveal that it likely doesn't contain a global magma ocean beneath its surface, as ...

Observations made of Jupiter’s moon Io during the Juno mission’s flybys helped astronomers confirm how and why Io became the most volcanic world in the solar system.

In California, the full moon will be at its highest point in the sky in the minutes right before midnight on Saturday, ...

Hundreds of volcanoes and lava lakes on Jupiter’s moon Io are likely powered in the same way as Earth’s volcanoes.

As many as 400 volcanoes are erupting on the surface of Jupiter's innermost moon Io, with virtually every square inch of the ...

The existence of another watery world in the outer solar system may offer clues to how such seas form — and hope for another spot to search for life ...

NASA's Juno spacecraft completed its 67th close approach to Jupiter on November 25, delivering a fresh batch of data and ...

Turning Point: In February, Intuitive Machines became the first private, nongovernmental entity to achieve a soft landing on ...