M13, better known as the Hercules Cluster, is one of the night sky’s great globular clusters. Globulars get their name for their distinct, globe-like appearance — a ball of stars that increases in ...

Telescopes 4 inches or less in diameter are portable, easy to use, and great beginner instruments. Here, I’ll walk through some of the objects you can see this summer using a small telescope. The ...

The northern sky’s standout globular, M13 in Hercules, is placed just right to give it a try tonight. Around 10 P.M. local daylight time, M13 is some 70° high in the west and won’t fully set until an ...

Astronomers have discovered signs of supermassive stars at the center of globular clusters born not long after the Big Bang. The globular cluster Messier 13, or the Hercules Cluster, as seen by the ...

Like a whirl of shiny flakes sparkling in a snow globe, Hubble catches an instantaneous glimpse of many hundreds of thousands of stars moving about in the globular cluster M13, one of the brightest ...

The Great Hercules Star Cluster is one of the true treasures of the summer and early autumn sky. It’s a dense cluster of stars all crammed together in a tight sphere that you’ll love directing your ...