Turn a telescope to the eastern sky in the hours following midnight on Nov. 5 to see two colossal shadows darken the cloud tops of the gas giant Jupiter as the Galilean moons Io and Europa pass ...

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 ...

"It's like estimating the brightness of a bonfire by observing only the flames and not the surrounding embers." When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Sky This Week is brought to you in part by Celestron. The bright star Sirius dominates the southern sky late this evening, blazing ...