These four globular clusters are easy to find in autumn skies and a perfect way to welcome the season.
Gamma Cassiopeia may lack a proper name, but the middle star of the "W"-shape constellation is worth finding on the sky.
Summer only lasts so long. Like everything, it's transient. That will be our theme as we explore wispy noctilucent clouds, a nova that can't sit still, and a supernova in NGC 5427 in Virgo.
On May 26th the Moon will be in total eclipse for the first time in nearly two and a half years. While timing favors western North America, a partial eclipse will be visible across much of the U.S. and Canada at dawn.
We beat a path through a forest of stars to find the first variable star ever discovered in a globular star cluster.