Add Yahoo as a preferred source to see more of our stories on Google. For the first time ever, astronomers say they’ve found evidence of water vapor on Jupiter’s moon, Ganymede. While scientists were ...

Jupiter is the object you’ll want to be watching this evening, as Ganymede prepares to transit along with its shadow. About an hour before that event starts, Ganymede and Europa line up as the two ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This article is more than 4 years old. To present the best ...

Looking for a sky event this week? Check out our full Sky This Week column. April 15: Spot the Moon and Mercury this morning ...

This image of the Jovian moon Ganymede was obtained by the JunoCam imager aboard NASA’s Juno spacecraft during its June 7, 2021, flyby of the icy moon. At the time of closest approach, Juno was within ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Jupiter’s moon ...

Point your telescope at bright Jupiter in Gemini to catch a transit of the large moon Ganymede overnight tonight. You’ll want to be ready to go with your telescope trained on the gas giant around ...

Scientists have a new map -- the best created so far -- of the largest moon in our solar system, Ganymede, and it is both beautiful and revealing. Ganymede is technically a satellite of Jupiter, but ...