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 ...

The moon greets Jupiter two days ahead of its full moon phase on Feb. 1.

NASA has recorded the most powerful volcanic eruption outside of Earth on Io, one of Jupiter’s moons. On December 27, 2022, ...

Using data gathered by NASA's Juno Jupiter orbiter, scientists estimate that Europa's ice shell is about 18 miles thick — which could make it hard for nutrients to get down to its buried ocean.

Sky This Week is brought to you in part by Celestron. Friday, February 6The bright star Sirius dominates the southern sky ...

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

WASHINGTON -- Scientists said they have found evidence of water in the atmosphere of Jupiter's icy moon "Europa." NASA said its Hubble space telescope observed the presence of persistent water vapor ...

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 ...

"What makes the event even more extraordinary is that it did not involve a single volcano, but multiple active sources." ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Skywatchers who get up early on Monday, Sept. 16, 2025, and ...

On Feb. 1, the Snow Moon will rise alongside some of winter's brightest stars after drifting past Jupiter A nearly full moon will shine alongside Jupiter on Friday, Jan. 30, creating an easy-to-spot ...