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Tag: Cluster

Hubble captures glow of giant galaxy cluster

Hubble captures glow of giant galaxy cluster

Science
April 13 (UPI) -- A new image from the Hubble Space Telescope showcases a massive galaxy cluster, a web of thousands of galaxies tied together by the tug of gravity.The galaxy cluster featured in the image is named PLCK G308.3-20.2. Like an ecosystem full of biodiversity, the cluster is home to wide range of galaxies -- all different types, shapes and sizes.This particular galaxy cluster is situated 5 billion light-years away from Earth.As recently as a few decades ago, astronomers thought galaxy clusters were the largest structures in the universe, but in the 1980s, scientists realized galaxy clusters were organized into structures called superclusters.Superclusters are made of groups of clusters that can stretch hundreds of millions of light-years across. Some superclusters cover as much...
Hubble spots Einstein ring surrounding galaxy cluster

Hubble spots Einstein ring surrounding galaxy cluster

Science
April 6 (UPI) -- A new image from Hubble showcases dozens of distant galaxies, as well as an astronomical phenomenon known as an Einstein ring.The lens-like circle at the image's center represents the distortion caused by the gravity of a galaxy cluster named SDSS J0146-0929. The cluster is comprised of millions of galaxies, all tied together by the pull of gravity.The gravity of the cluster's millions of galaxies is strong enough to warp the surrounding space-time.As distant light travels toward Earth, it bends around the massive cluster, creating the lens-like phenomenon."In this image, the light from a background galaxy is diverted and distorted around the massive intervening cluster and forced to travel along many different light paths toward Earth, making it seem as though the galaxy ...
Hubble image showcases cluster with mass of three million billion suns

Hubble image showcases cluster with mass of three million billion suns

Science
Jan. 16 (UPI) -- A new image captured by the Hubble Space Telescope shows what the mass of three million billion suns looks like. The image, shared Tuesday by NASA, features ACT-CLJ0102-4915, a massive cluster known as El Gordo -- Spanish for "The Fat One."El Gordo is the biggest, brightest and hottest galaxy cluster found in the distant universe. It's located 7 billion light-years from Earth.As revealed by a trio of telescopes in 2012, including NASA's Chandra X-ray Observatory, El Gordo is actually the product of two galaxy clusters, which are in the millions-of-years-long process of colliding.The formation and evolution of galaxy clusters is thought be heavily influenced by dark matter. The study of galaxy clusters can help astrophysicists better understand dark matter and dark energy."...
Hubble reveals star cluster Messier 79 doing snow globe impression

Hubble reveals star cluster Messier 79 doing snow globe impression

Science
Dec. 12 (UPI) -- A Hubble Space Telescope image features the star cluster Messier 79 doing its best snow globe imitation. The mass of stars is a "globular" cluster, after all.Globular clusters are gravitationally bound collections of stars. The cluster most recently framed by Hubble's lens hosts roughly 150,000 stars -- small potatoes compared to some clusters, which can feature up to a million stars.M79's stars are packed into a sphere-like shape stretching just 118 light-years across. The star globe is positioned within the constellation Lepus, 41,000 light-years from Earth.Stellar clusters are typically centered around the central hub of our spiral galaxy, the Milky Way, but Messier 79 -- sometimes called NGC 1904 -- is found far from our galactic center. Some astronomers estimate the c...
Baby stars discovered in Orion Nebula Cluster

Baby stars discovered in Orion Nebula Cluster

Technology
Astronomers have discovered and photographed three different populations of baby stars within the Orion Nebula Cluster.A new photograph displays their discovery, which wasn't expected when scientists pointed the new VLT Survey Telescope's OmegaCAM just below the belt of Orion.The Orion Nebula Cluster is one of the closest stellar nurseries to Earth at only 1350 light years away and offers scientists their best view into how both high and low-mass stars are formed.By analysing the image, scientists have found evidence suggesting that star formation within the nebula cluster is taking place in rapid bursts, with generations of stars forming within less than three million years.Scientists from the European Southern Observatory, led by astronomer Giacomo Beccari, used data "of unparalleled qua...