The solar system's largest moon, Ganymede, which orbits the largest planet, Jupiter, was hit by an asteroid four billion years ago that shifted the gas giant's satellite on its axis, new research ...

For the first time ever, astronomers say they’ve found evidence of water vapor on Jupiter’s moon, Ganymede. While scientists were already aware of the likelihood that the moon—the largest one in the ...

Scientists have observed “extraordinary” waves coming out of Jupiter’s moon Ganymede. The electromagnetic waves, also known as “chorus waves,” were spotted using the Galileo Probe spacecraft, which ...

NASA has detected water vapor for the very first time in the atmosphere of Ganymede — not only Jupiter's largest moon, but the largest moon in our entire solar system. Researchers made the discovery ...

Looking for a sky event this week? Check out our full Sky This Week column. November 30: Watch Titan reappear Jupiter is the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The shadow of Ganymede is projected onto the cloud-tops of ...

NASA's Hubble Space Telescope, monitoring subtle shifts in auroras flickering around Jupiter's moon Ganymede, has confirmed the presence of a deep salt-water ocean 95 miles below the icy crust of the ...

NASA’s Juno spacecraft flew closer to Jupiter’s moon Ganymede than any spacecraft in the last two decades, according to NASA. The moon is the largest in our solar system. (FILE-A screenshot from the ...

The fresh image came from a May 2019 flyby of the NASA spacecraft. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A powerful new picture of ...

Jupiter shines brilliantly in the eastern sky this December as it nears opposition early in 2026, outshining nearby stars and ...

An amateur astronomer has created the first-ever homemade brightness map of Jupiter's huge moon Ganymede in a magnificent display of how non-professional skywatchers can contribute to the field of ...

NASA’s Juno spacecraft flew closer to Jupiter’s moon Ganymede than any spacecraft in the last two decades, according to NASA. The moon is the largest in our solar system. (FILE-A screenshot from the ...