Space Missions

Future Planetary Probes Can Learn from Cassini

An unusual water composition at Saturn’s moon Phoebe means that future spacecraft will have to be on the lookout for different water ratios than we are used to on Earth.

water plume on Europa

Astrobiology

Source for Europa Geysers Missing

A new look at old data suggests there’s something missing from suspected plumes on Europa: a heat source.

Jupiter, Europa, and Galileo

Solar System

NASA's Galileo Measures Plumes on Jupiter's Moon Europa

A new analysis of decades-old data from NASA’s Galileo spacecraft, which reached the Jupiter system in 1995, shows the best evidence yet for plumes from the icy moon Europa.