Summary
Unique MoonBigger than Mercury and only slightly smaller than Mars, Ganymede Ganymede has a diameter of 3,273 miles/5,268 kilometers.
Kobe University HIRATA Naoyuki was the first to realize that the location of an asteroid impact on ... [+] Jupiter’s moon Ganymede is almost precisely on the meridian farthest away from Jupiter.
Recent research revealed that the dinosaur-killing asteroid outside Jupiter’s orbit during the early development of our solar system.
Also using data from the Hubble Space Telescope, a study in 2021 announced that scientists had found the first evidence for water vapor in the atmosphere of Jupiter’s giant icy moon Ganymede.
Data collected by Juno suggests that there are mineral salts and organic compounds on the surface of Jupiter’s giant moon Ganymede.