File:Cosmic Knot.jpg
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[edit]DescriptionCosmic Knot.jpg |
English: This image, captured by the NASA/ESA Hubble Space Telescope, shows what happens when two galaxies become one. The twisted cosmic knot seen here is NGC 2623 — or Arp 243 — and is located about 250 million light-years away in the constellation of Cancer (The Crab). NGC 2623 gained its unusual and distinctive shape as the result of a major collision and subsequent merger between two separate galaxies. This violent encounter caused clouds of gas within the two galaxies to become compressed and stirred up, in turn triggering a sharp spike of star formation. This active star formation is marked by speckled patches of bright blue; these can be seen clustered both in the centre and along the trails of dust and gas forming NGC 2623’s sweeping curves (known as tidal tails). These tails extend for roughly 50 000 light-years from end to end. Many young, hot, newborn stars form in bright stellar clusters — at least 170 such clusters are known to exist within NGC 2623. NGC 2623 is in a late stage of merging. It is thought that the Milky Way will eventually resemble NGC 2623 when it collides with our neighbouring galaxy, the Andromeda Galaxy, in four billion years time. In contrast to the image of NGC 2623 released in 2009 (heic0912), this new version contains data from recent narrow-band and infrared observations that make more features of the galaxy visible. |
Date | |
Source | https://www.nasa.gov/image-feature/goddard/2017/hubble-unravels-a-twisted-cosmic-knot |
Author | NASA |
Licensing
[edit]Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:19, 2 December 2017 | 3,978 × 1,910 (2.85 MB) | Sergkarman (talk | contribs) | full size | |
06:18, 21 November 2017 | 1,041 × 500 (59 KB) | Prismo345 (talk | contribs) | User created page with UploadWizard |
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Credit/Provider | ESA/Hubble & NASA |
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Source | ESA/Hubble |
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Date and time of data generation | 06:00, 16 October 2017 |
Software used | Adobe Photoshop CC 2017 (Windows) |
File change date and time | 14:32, 9 June 2017 |
Date and time of digitizing | 23:08, 27 February 2017 |
Date metadata was last modified | 16:32, 9 June 2017 |
Unique ID of original document | xmp.did:6757e26d-6490-0940-a5ee-0aaf1cb7b4e6 |
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Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |