While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...

Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the ...

Jupiter’s Galilean moons often transit the planet’s disk one at a time — tonight, however, Io and Europa cross the disk together. The two moons even appear to partially overlap as their transits begin ...

Europa’s buried ocean has made it one of the most exciting places to search for life beyond Earth. However, new calculations suggest its seafloor may be calm, cold, and largely inactive, with little ...

On October 10, 2025, a double transit event of Jupiter's moons, Io and Europa, along with their shadows, is observable across the planet's disk. This predawn phenomenon begins at 4:30 A.M. EDT with ...

For decades, Europa has been the optimistic counterpoint to a lonely solar system, a small icy world that seemed to tick ...

Sulfur dioxide was found on the backside of Europa thanks to Jupiter's magnetic field. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Jupiter's moon Europa is among the most promising places in the solar system for the search for life beyond Earth, with a large subsurface ocean thought to be hidden beneath an outer shell of ice.