Jupiter is the king of moons. With 95 of them orbiting the gas giant, some are so large they rival planets in size. But what ...

Add Yahoo as a preferred source to see more of our stories on Google. On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he looked at ...

The February 2026 Full Moon peaks on February 2, pairs with bright Jupiter and carries centuries of cultural meaning across the world.

Sky This Week is brought to you in part by Celestron. Friday, February 6The bright star Sirius dominates the southern sky late this evening, blazing high in the south around 10 P.M. local time. You ...

A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor. We already know a decent amount about how planets form, but moon ...