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 Clipper - one of the most advanced spacecraft ever sent to another planet - aims to explore Jupiter's icy moon ...

Credit: Thomas Bresson More detailed observations from NASA’s Galileo spacecraft that orbited Jupiter between 1995 and 2003 and completed 11 close encounters with Europa revealed that long linear ...

Image of Europa taken by Voyager 1 during its 1979 flyby of Jupiter. Image of Europa taken by Voyager 2 during its 1979 flyby of Jupiter. More detailed observations from NASA's Galileo spacecraft that ...

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

NASA's mission to send a spacecraft to scour Jupiter's moon Europa for signs of life appears back on track after Hurricane Milton forced a delay.

Since its discovery in 1610 by Galileo, the rings of Saturn have enchanted us for centuries. Remarkably, we've visited Saturn before. Stunning photographs taken from the Cassini space probe have ...

The heavy ion counter that flew on Galileo was a direct sensing instrument. It registered the characteristics of ions in the spacecraft’s vicinity that actually entered the instrument. It did not ...

Those payloads include several studying the lunar regolith and how it adheres to materials as well as tests of the ability to use navigation signals from GPS and Galileo spacecraft in cislunar space.