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

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

A new finding of ammonia on the icy surface of Jupiter's moon Europa could have important implications for the search for ...

There’s no mistaking Jupiter in the sky these Butler winter evenings, rising in the southeast as evening twilight ends. In ...

Using data gathered by NASA's Juno Jupiter orbiter, scientists estimate that Europa's ice shell is about 18 miles thick — ...

On Feb. 1, the Snow Moon will rise alongside some of winter's brightest stars after drifting past Jupiter ...

Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the beginning.

A group of astronomers from the Carnagie Institution for Science announced on Monday that they discovered 12 previously undiscovered moons orbiting Jupiter, including one the institution is calling an ...

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

What if Jupiter’s 79 moons weren’t gravitationally bound to Jupiter? What if they became rogue objects orbiting on their own ...