Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

Skygazers, mark your calendars because one of the coolest celestial events is coming around again toward the end of February.

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

Thick, swirling clouds cover Jupiter from pole to pole. They hold water like Earth’s clouds, but at far greater density.

Sky This Week is brought to you in part by Celestron. Friday, January 9Mars is in conjunction with the Sun at 7 A.M. EST, invisible in our sky until mid-March. The bright moon Titan lies near its ...

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