File:Galaxy Cluster MACS J0454.1-0300.jpg
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Summary[edit]
| Description |
English: Galaxy clusters are some of the most massive structures that can be found in the universe — large groups of galaxies bound together by gravity. This image from the Hubble Space Telescope reveals one of these clusters, known as MACS J0454.1-0300. Each of the bright spots seen here is a galaxy, and each is home to many millions, or even billions, of stars.
Astronomers have determined the mass of MACS J0454.1-0300 to be around 180 trillion times the mass of the Sun. Clusters like this are so massive that their gravity can change the behavior of space around them, bending the path of light as it travels through them, sometimes amplifying it and acting like a cosmic magnifying glass. Thanks to this effect, it is possible to see objects that are so far away from us that they would otherwise be too faint to be detected. In this case, several objects appear to be dramatically elongated and are seen as sweeping arcs to the left of this image. These are galaxies located at vast distances behind the cluster. Their light has been amplified and distorted as it passes through MACS J0454.1-0300. This process, known as gravitational lensing, is an extremely valuable tool for astronomers as they peer at very distant objects. For more information, visit: www.spacetelescope.org/images/potw1412a/ Credit: ESA/Hubble & NASA; Acknowledgment: Nick Rose |
| Date | |
| Source | https://www.flickr.com/photos/144614754@N02/32866961508/ |
| Author | NASA Hubble |
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This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/32866961508 (archive). It was reviewed on 26 February 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 21:26, 26 February 2020 | | 3,605 × 3,236 (1.4 MB) | Killarnee (talk | contribs) | User created page with UploadWizard |
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