The Hercules Cluster (M13) is often cited as the grandest globular cluster north of the celestial equator. Located 25,000 light- years away, it hosts more than 100,000 stars crammed into a volume of ...

The constellation Hercules is high in the east after dark this evening. Rich with deep-sky objects, we’re passing by the Strongman’s most famous (M13) for its second-brightest globular cluster: M92.

If you find yourself in a dark, un-light-polluted area anytime soon, be sure to glance around the sky with binoculars. Along the hazy band of the Milky Way and elsewhere, you’re sure to find plenty of ...

Sometimes we have no clue what's over our heads. On July nights it's easy to find out. As soon as the sky gets dark (around 10:30-11 p.m. local daylight time) look high up in the southeastern sky for ...

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 ...

As shown in Figure 1, Hercules hangs from his knee in the western sky after dusk. This makes it a good time of year to try to spot the globular cluster, M13, with binoculars, or even your unaided eye ...

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 ...

Warm mid-August summer nights offer prime conditions for spotting three magnificent star clusters visible to northern-hemisphere skywatchers in the coming months. Star clusters are gravitationally ...