ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

Looking for a sky event this week? Check out our full Sky This Week column. October 17: Catch open cluster M34 Jupiter stands ...

An Ariane 5 rocket originally expected to launch Thursday is now set to take off Friday, boosting a $1.7 billion European Space Agency probe on a roundabout 8-year voyage to Jupiter where it will ...

Jupiter’s moon Io is the most volcanic place in the solar system. The intense activity is powered by the complex gravitational interactions between itself, the gas giant, and its fellow moons Europa, ...

Jupiter is well known for its spectacular aurorae, thanks in no small part to the Juno orbiter and recent images taken by the James Webb Space Telescope (JWST). Like Earth, these dazzling displays ...

The surface of Europa – one of Jupiter's moons – is a thick layer of solid ice. NASA/JPL-Caltech/SETI Institute, CC BY-SA On April 13, 2023, the European Space Agency launched a rocket carrying a ...

As a newborn planet, Jupiter glowed brightly in the sky and outshined today’s sun from the perspective of the gas giant’s largest moons. That early radiance—and upcoming visits by multiple ...

A sightseeing alien touring our solar system would do well to check out the emerald and blood orange-red ribbons of Earth’s auroras. But our world isn’t the only one with spectacular light shows in ...

A 4-billion-year-old volcano? New research finds that Io, the solar system’s most volcanically active moon, can brag just that. A recent study of Io’s sulfurous atmosphere suggests that Jupiter’s moon ...

On April 13, 2023, the European Space Agency is scheduled to launch a rocket carrying a spacecraft destined for Jupiter. The Jupiter Icy Moons Explorer – or JUICE – will spend at least three years on ...

Researchers reported auroras around Jupiter’s two largest Galilean moons for the first time and found new features in the auroras of volcanic Io and icy Europa. By Robin George Andrews A sightseeing ...