On this date, Jan. 17, 2002, the Galileo probe made it’s 33 rd pass of Jupiter’s moon, Io. After Voyager 1’s pass in 1979, Io was dubbed the most volcanically active place in the solar system.

Europa's frozen, fissured surface, seen here in a colorized mosaic image from the Galileo spacecraft, hides a liquid ocean that may hold all the ingredients needed for life. Three key ingredients ...

Both NASA and Firefly Aerospace say Blue Ghost remains healthy as it prepares to make for lunar orbit sometime next month.

A rotating, solar-powered spacecraft Juno was launched in 2011. Because of the Galileo probe experience, the mission seeks to obtain water abundance readings across large regions of the immense ...