File:Webb Reveals Early-Universe Prequel to Huge Galaxy Cluster - Flickr - James Webb Space Telescope.png
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Summary
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| Description |
The seven galaxies spotlighted (on the right) form a protocluster so far away, its light took about 13 billion years to reach us. Webb scientists predict it may grow into one of the largest, densest galaxy clusters known. Webb's NIRSpec instrument was able to confirm the seven galaxies' distance and even measure their velocities, confirming that they are moving within a halo of dark matter at more than 2 million miles per hour. The precise data also allowed astronomers to model and map the protocluster's future development. Why do we care about galaxy clusters? Their massive gravitational pull warps time and space, distorting but also brightening objects behind them. This makes them great “magnifying glasses” for distant, background galaxies. In fact, we found this protocluster with the help of Pandora’s Cluster, another galaxy cluster! Learn more: go.nasa.gov/3oFm4Fj Credit: NASA, ESA, CSA, T. Morishita (IPAC), with image processing by A. Pagan (STScI) Image description: The left side of this image features various galaxies colored orange, red and white on a black background. Most of the white galaxies have a hazy halo. A prominent, glowing group of larger white galaxies appears below center. In the top half, five small white squares highlight very faint and tiny red galaxies that would not stand out otherwise, with lines radiating from the small squares to a stacked column of five squares on the right side of the image. This column provides a zoomed-in view of seven specific galaxies, all appearing as red smudges or dots. The top square shows two galaxies labeled ZD6 and ZD3. The next square down shows a galaxy labeled ZD2. The third square down shows one galaxy labeled GlassZ8-2. The fourth square down shows two galaxies labeled YD4 and YD7. Finally, the bottom square shows one galaxy labeled YD8. |
| Date | Taken on 24 April 2023, 10:30 |
| Source | Webb Reveals Early-Universe Prequel to Huge Galaxy Cluster |
| Author | NASA's James Webb Space Telescope from Greenbelt, MD, USA |
| Flickr tags | jwst, webb, james, space, telescope, galaxy, cluster, protocluster, pandora's cluster, abell 2744 |
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This image was originally posted to Flickr by James Webb Space Telescope at https://flickr.com/photos/50785054@N03/52842911050. It was reviewed on 26 April 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:25, 26 April 2023 | | 11,319 × 12,083 (86.2 MB) | Red panda bot (talk | contribs) | In Flickr Explore: 2023-04-24 |
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