Looking for a sky event this week? Check out our full Sky This Week column. February 10: The Moon approaches Antares ...
Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 28, 2000, NASA’s Galileo spacecraft discovered auroras on Ganymede, Jupiter’s largest moon. Galileo launched in 1989 on a ...
Sky This Week is brought to you in part by Celestron. Friday, February 6The bright star Sirius dominates the southern sky ...
A new discovery suggests the possibility of an exomoon with an unprecedentedly large mass, thousands of times larger than any moon in our Solar System.