File:NASA-Galaxies15k-HubbleHDUV-20180816.png
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Summary
DescriptionNASA-Galaxies15k-HubbleHDUV-20180816.png |
English: Astronomers have just assembled one of the most comprehensive portraits yet of the universe’s evolutionary history, based on a broad spectrum of observations by the Hubble Space Telescope and other space and ground-based telescopes. In particular, Hubble’s ultraviolet vision opens a new window on the evolving universe, tracking the birth of stars over the last 11 billion years back to the cosmos’ busiest star-forming period, about 3 billion years after the big bang. This photo encompasses a sea of approximately 15,000 galaxies — 12,000 of which are star-forming — widely distributed in time and space. This mosaic is 14 times the area of the Hubble Ultra Violet Ultra Deep Field released in 2014.
The image straddles the gap between the very distant galaxies, which can only be viewed in infrared light, and closer galaxies, which can be seen across a broad spectrum. The light from distant star-forming regions in remote galaxies started out as ultraviolet. However, the expansion of the universe has shifted the light into infrared wavelengths. By comparing images of star formation in the distant and nearby universe, astronomers glean a better understanding of how nearby galaxies grew from small clumps of hot, young stars long ago. Because Earth’s atmosphere filters most ultraviolet light, Hubble can provide some of the most sensitive space-based ultraviolet observations possible. The program, called the Hubble Deep UV (HDUV) Legacy Survey, extends and builds on the previous Hubble multi-wavelength data in the CANDELS-Deep (Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey) fields within the central part of the GOODS (Great Observatories Origins Deep Survey) fields. This mosaic is 14 times the area of the Hubble Ultra Violet Ultra Deep Field released in 2014. This image is a portion of the GOODS-North field, which is located in the northern constellation Ursa Major. |
Date | |
Source | https://www.nasa.gov/feature/goddard/2018/hubble-paints-picture-of-the-evolving-universe (image link) |
Author | NASA, ESA, P. Oesch (University of Geneva), and M. Montes (University of New South Wales) |
Licensing
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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16 August 2018
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:20, 17 August 2018 | 2,000 × 1,768 (5.77 MB) | Drbogdan | User created page with UploadWizard |
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Source | STScI |
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Author | Space Telescope Science Institute Office of Public Outreach |
Usage terms | |
Date metadata was last modified | 10:32, 24 July 2018 |
Unique ID of original document | xmp.did:f25a5626-b455-431b-89b9-a86693b78edb |
Contact information | outreach@stsci.edu
3700 San Martin Drive Baltimore, MD, 21218 USA |
Keywords | GOODS-North |
Horizontal resolution | 28.34 dpc |
Vertical resolution | 28.34 dpc |
File change date and time | 16:27, 23 July 2018 |