There’s no mistaking Jupiter in the sky these winter evenings, rising in the southeast as evening twilight ends. In fact, you should be able to easily see it long before twilight fades. Jupiter is ...

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

"Most excitingly, this new idea addresses one of the longstanding habitability problems on Europa and is a good sign for the ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...

New models suggest that Europa has very little tectonic activity at its seafloor, which is potentially catastrophic news for ...

With the moon out of the way on Jan. 18, bright Jupiter and Saturn become stand-outs in the January night sky.

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 ...

Jupiter steals the spotlight in January as it reaches its brightest and biggest appearance of the year. The month also ...

WASHINGTON, Jan 6 (Reuters) - Jupiter's moon Europa is on the short list of places in our solar system seen as promising in the search for life beyond Earth, with a large subsurface ocean thought to ...

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 ...

Sky This Week is brought to you in part by Celestron. Friday, January 23Pluto reaches conjunction with the Sun at 5 A.M. EST.