On October 29, 1991, the Galileo spacecraft flew by the asteroid Gaspra on its way to Jupiter. ‘On This Day in Space’ Video Series on Space.com Gaspra was the first asteroid to ever be visited ...

Voyager 1 and 2 spacecrafts captured the first close-up images, and then in 1995 Nasa’s Galileo spacecraft flew past Europa taking some deeply puzzling pictures. They showed a surface riddled ...

The Galileo mission ended on Sept. 21, 2003, when the spacecraft was intentionally commanded to dive into Jupiter's atmosphere, where it was destroyed. However, to this day scientists continue to ...

The first close-up images of Io since NASA’s Galileo mission in 1997 revealed the emergence of a fresh volcano with multiple lava flows and volcanic deposits covering an area of about 180 ...