A globular cluster is a spherical collection of stars. Globular clusters are very tightly bound by gravity, giving them their spherical shapes and high concentrations of stars toward their centers.

NASA’s Hubble Space Telescope has uncovered what astronomers are reporting as the dimmest stars ever seen in any globular star cluster. Globular clusters are spherical concentrations of hundreds of ...

Globular clusters are ancient, spherical groups of stars that are often as old as the galaxies they orbit. The stars in a globular cluster orbit the center of mass of the cluster, and the angular ...

Here’s what deep-space objects are, what optics you’ll need to see them and how to plan your observing. When you purchase ...

The NASA/ESA Hubble Space Telescope has identified thousands of more than 5 billion years old globular clusters in the Virgo cluster of galaxies. One of the results of these discoveries led ...

NASA's Hubble Space Telescope snapped a pair of "dazzlingly different" images of a brilliant star cluster some 160,000 light years away. Globular cluster NGC 1850, in the constellation Dorado, is ...

The Hubble Space Telescope finessed the light beaming in from outside our galaxy, and the result is a fabulous image where individual stars are seen in a big embrace. When thousands or even millions ...

Using the Karl G. Jansky Very Large Array (VLA), astronomers have discovered a millisecond pulsar in the globular cluster GLIMPSE-C01 as part of the VLA Low-band Ionosphere and Transient Experiment ...

A spherical shape made from the pinpricks of light from closely packed stars revealed itself to the Hubble Space Telescope when the observatory recently peered into the constellation Mensa. Hubble ...

A glittering multitude of stars in the globular cluster Terzan 4 fills this image from the NASA/ESA Hubble Space Telescope. Globular clusters are collections of stars bound together by their mutual ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Globular clusters like this one, Omega Centauri, are very ...

It seems like the only things I have seen in the evening sky recently have been clouds. Although the garden plants are happy with the rain, my dogs are unhappy about the thunder. Whenever the sky does ...