Galaxy cluster - Wikipedia
A galaxy cluster, or a cluster of galaxies, is a structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by gravity, [1] with typical masses ranging from 10 14 to 10 15 solar masses.
Galaxy Clusters - Harvard–Smithsonian Center for Astrophysics
Galaxy clusters are the largest objects in the universe that are held together by their own gravity. They contain hundreds or thousands of galaxies, lots of hot plasma, and a large amount of invisible dark matter. The Perseus Cluster, for example, has more than a thousand galaxies and is one of the most luminous sources of X-rays in the sky.
Large Scale Structures - NASA Science
Galaxy clusters contain many more galaxies, from hundreds to thousands. The Coma cluster, for example, houses over 1,000 individual galaxies and stretches over 20 million light-years across.
Galaxy groups and clusters - Wikipedia
Clusters of galaxies are the most recent and most massive objects to have arisen in the hierarchical structure formation of the Universe and the study of clusters tells one about the way galaxies form and evolve.
NASA’s Webb, Hubble Combine to Create Most Colorful View of …
2023年11月9日 · NASA’s James Webb Space Telescope and Hubble Space Telescope have united to study an expansive galaxy cluster known as MACS0416. The resulting panchromatic image combines visible and infrared light to assemble one of the most comprehensive views of the universe ever taken.
Cluster of galaxies | Galactic Structure, Formation & Evolution ...
Cluster of galaxies, Gravitationally bound grouping of galaxies, numbering from the hundreds to the tens of thousands. Large clusters of galaxies often exhibit extensive X-ray emission from intergalactic gas heated to tens of millions of degrees.
NASA’s Webb Delivers Deepest Infrared Image of Universe Yet
2022年7月12日 · NASA’s James Webb Space Telescope has delivered the deepest and sharpest infrared image of the distant universe so far. Webb’s First Deep Field is galaxy cluster SMACS 0723, and it is teeming with thousands of galaxies – including the faintest objects ever observed in …
Learn About Galaxy Clusters - Chandra X-ray Observatory
Galaxy clusters are the largest objects in the Universe held together by gravity. Chandra detects the superheated gas that fills the space between the hundreds and thousands of galaxies in these enormous clusters.
A clear view of a galaxy cluster - ESA/Hubble
2023年8月14日 · The massive cluster Abell 3322 is featured in this image from the NASA/ESA Hubble Space Telescope, in which the galaxy 2MASX J05101744-4519179 basks in the centre. This distant galaxy cluster is a cosmic leviathan that is highly luminous at X-ray wavelengths.
Webb Spotlights Gravitational Arcs in ‘El Gordo’ Galaxy Cluster
2023年8月2日 · Webb’s infrared image of the galaxy cluster El Gordo (“the Fat One”) reveals hundreds of galaxies, some never before seen at this level of detail. El Gordo acts as a gravitational lens, distorting and magnifying the light from distant background galaxies.