File:Bumps in the heavens (potw2148a).tiff
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[edit]DescriptionBumps in the heavens (potw2148a).tiff |
English: Just as people at a busy crossroad may accidentally bump into each other, so too can galaxies in the Universe! But in this case, the outcome is more dramatic than a small nudge. When two galaxies clash, they merge into each other, giving birth to a new, bigger one. One example is the NGC 7727 galaxy, shown in this image from ESO’s VLT Survey Telescope (VST) in Chile.Located 89 million light-years away from Earth in the constellation Aquarius, NGC 7727 is believed to be the result of a clash between two galaxies that occurred about one billion years ago. The consequences of this tremendous cosmic bump are still evident in the peculiar, irregular shape of NGC 7727 and the streams of stars in its outer regions. The image was taken in visible light as part of the VST-ATLAS survey. The goal of the survey is to map a vast region of the Southern Sky — so large you could fit about 19,000 full moons in it! By studying the galaxies in this region, astronomers aim to shed new light on the nature of dark energy, the mysterious force permeating the Universe and causing its accelerating expansion. |
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Date | 29 November 2021 (upload date) | ||
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Author | ESO/VST ATLAS team. Acknowledgement: Durham University/CASU/WFAU | ||
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Licensing
[edit]This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
This file is licensed under the Creative Commons Attribution 4.0 International license.
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current | 03:10, 20 January 2024 | 3,429 × 3,324 (23.19 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://cdn.eso.org/images/original/potw2148a.tif via Commons:Spacemedia |
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Width | 3,429 px |
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Height | 3,324 px |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 25 |
Horizontal resolution | 10 dpc |
Vertical resolution | 10 dpc |
Data arrangement | chunky format |
Software used | Adobe Photoshop 23.0 (Windows) |
File change date and time | 14:35, 10 November 2021 |
Color space | sRGB |