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M5, your new favorite globular star cluster

M5 in Serpens Caput is a refreshing sight through a small telescope, as thousands of stars cluster together into a tightly packed ball of this globular cluster.

Bruce McClure

Kelly Kizer Whitt

June 20, 2023

Omega Centauri is the Milky Way’s largest star cluster

Omega Centauri is the Milky Way's largest globular star cluster and contains about 10 million stars. It's even visible from parts of the Northern Hemisphere.

Bruce McClure

May 30, 2023

The Coma Berenices galaxy cluster, best in April and May

Myriads of galaxies, visible only to those with telescopes, shine among the stars of the constellation Coma Berenices. This is the distant Coma Berenices galaxy cluster.

Larry Sessions

April 13, 2023

Rho Ophiuchi is filled with glorious color

One of the most colorful regions of the sky, Rho Ophiuchi showcases clusters and nebulae galore. This region is a great target for August nights.

Kelly Kizer Whitt

March 16, 2023

The Beehive cluster: A swarm of 1,000 stars

The Beehive cluster is an open star cluster that lies near the center of the constellation Cancer the Crab. It goes by many names, including Praesepe and M44.

Bruce McClure

Deborah Byrd

March 15, 2023

Meet the Crab Nebula, remnant of an exploding star

The Crab Nebula, the scattered fragments of a supernova, or exploding star, was observed by earthly skywatchers in the year 1054.

Larry Sessions

Shireen Gonzaga

January 15, 2023

The Orion Nebula is a starry nursery

You can see the Orion Nebula as a fuzzy spot in the sky using just your eyes. It's really a vast cloud in space where new stars are forming. Learn more.

Bruce McClure

December 16, 2022

See Messier 20, the Trifid Nebula

If you have an extremely dark sky, you can see the Trifid Nebula on as a fuzzy patch in the Milky Way. Binoculars show more and a telescope even more detail.

Bruce McClure

EarthSky Voices

August 17, 2022