Astronomy & Astrophysics 101: Globular Cluster
What Is a Globular Cluster? Globular clusters are stable, tightly bound clusters of tens of thousands to millions of stars. They are associated with all…
Globular Cluster News
Globular Clusters are spheroidal groups of thousands to millions of stars bound together by gravity. Because the constituent stars formed at similar times, and the high density of these clusters, scientists have observed these structures to learn more about star formation, gravitational waves, and stellar evolution. Read more about globular clusters and the breakthroughs made through them on SciTechDaily.com
Astronomers Reveal Globular Clusters 4 Billion Years Younger Than Previously Thought
New research led by the University of Warwick reveals that globular clusters could be up to 4 billion years younger than previously thought. Once thought…
Unexpected Burst of Newborn Stars Puzzles Astronomers
Since the limited amount of gas survived from the first bulk star forming process will be quickly expelled within several million years, star clusters have…
Hubble Admires Youthful Globular Star Cluster NGC 362
This newly released Hubble image shows globular cluster NGC 362. Globular clusters offer some of the most spectacular sights in the night sky. These ornate…
Astronomers Analyze the Distribution of Globular Clusters
Astronomers from the Harvard-Smithsonian Center for Astrophysics have analyzed the distribution of over eighty thousand globular clusters to infer an active history of galaxy-galaxy interactions….
Hubble Reveals Globular Clusters Gain Star-Making Fuel from Outside the Cluster Itself
Using Hubble data, a team of astronomers has for the first time found young populations of stars within globular clusters that have apparently developed courtesy…
Astronomers Reach an Important Milestone in the Study of Cluster Mergers
Astronomers reach an important milestone in the study of cluster mergers, showing that member galaxies are still gas-rich and thus can form stars and stimulate…
Newly Released Hubble Image of Globular Cluster NGC 1783
This newly released Hubble image shows globular cluster NGC 1783, which is about 160,000 light-years from Earth. Shown here in a new image taken with…
ALMA Discovers a Globular Cluster about to be Born
Using the Atacama Large Millimeter/submillimeter Array, astronomers have discovered what may be the first known example of a globular cluster about to be born. Globular…
Astronomers Use Globular Clusters to Measure Galaxy Evolution
A new study from the Harvard-Smithsonian Center for Astrophysics reveals that globular clusters are often gathered into distinct groupings whose shapes reflect the formation of…
Hubble Views Globular Cluster Palomar 12
This newly released Hubble image shows a globular cluster of stars known as Palomar 12. Panta rhei is a simplified version of the famous Greek…
Hubble Image of the Week – Globular Cluster NGC 6535
This newly released Hubble image shows globular cluster NGC 6535. This image captures the stunning NGC 6535, a globular cluster 22,000 light-years away in the…
Hubble Views Globular Cluster IC 4499
This newly released Hubble image shows the globular cluster IC 4499. Globular clusters are big balls of old stars that orbit around their host galaxy….
Astronomers Discover Stars Rotating Around a Common Axis in Globular Clusters
Using the new Integral Field Unit instrument VIRUS-W in conjunction with the 2.7-meter Harlan J. Smith Telescope, astronomers discovered that stars at the centers of…
New Hubble Image of One of the Oldest Known Globular Clusters
This newly released Hubble image shows star cluster Messier 15, which is one of the oldest known globular clusters and is located roughly 35,000 light-years…
Astrophysicists Discover Black Holes in Globular Star Clusters
Using an array of radio telescopes, a team of astrophysicists discovered the first examples of black holes in globular star clusters in our own galaxy….
Hubble Reveals Largest Known Group of Star Clusters, Clues to Dark Matter
Using the Hubble Space Telescope, astronomers have uncovered the largest known group of star clusters and have confirmed that such compact groupings can be used…
Astrophysicists Discover a New Class of Star Cluster
Using Hubble and the W. M. Keck Observatory’s 10-meter (33-ft) telescope in Hawaii, astrophysicists discovered several star clusters with sizes and masses that were previously…