A new analysis of data from NASA’s Galileo spacecraft reveals a subsurface “ocean” of magma–either molten or partially molten–beneath the surface of Jupiter’s volcanic moon Io. The finding, from a ...

While there’s no concrete consensus on a list of prerequisites for life to evolve on other planets, there are at least a ...

In the end, it was the hint of life on an icy moon that doomed the Galileo spacecraft to a fiery death. This afternoon, the NASA spacecraft will end its 2.8-billion-mile odyssey with a suicidal plunge ...

LOS ANGELES - Since 1989, the camera on NASA's Galileo spacecraft has captured a comet slamming into Jupiter, volcanoes erupting on one of its moons and the first known moon orbiting an asteroid. On ...

In a mission that changed our understanding of gas giants, NASA’s Galileo spacecraft made history not just in orbit but also in its dramatic descent into Jupiter’s atmosphere. Launched in October 1989 ...

Europe has quietly crossed an important threshold in its space ambitions. With its latest Ariane 6 mission, the continent has once again demonstrated the ability to place strategic assets into orbit ...

What exists beneath the surface of Jupiter's icy moon, Callisto? This is what a recent study accepted by The Planetary ...

Images from NASA's Galileo mission reveal a tantalizing starburst-like feature. Scientists call it a "wall demon." When you purchase through links on our site, we may earn an affiliate commission.