File:A Sky Full of Galaxies.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:13, 12 July 2023		4,000 × 2,576 (1.23 MB)	commons>OptimusPrimeBot	#Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/iotw2110a.jpg via Commons:Spacemedia

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Credit/Provider	CTIO/NOIRLab/DOE/NSF/AURAImage processing: Travis Rector (University of Alaska, Anchorage/NSF's NOIRLab), Jen Miller (Gemini Observatory/NSF's NOIRLab), Mahdi Zamani & Davide de Martin (NSF's NOIRLab)
Source	NSF's NOIRLab
Short title	A Sky Full of Galaxies
Image title	The blackness of space is punctuated by bright dots. This image could almost be mistaken for a particularly detailed shot of the night sky as seen from Earth, full of stars. Appearances, however, can be deceptive. This image was taken from Earthʻs southern hemisphere, but the bright dots are not stars — they are galaxies. In fact, the distinctive, ring-shaped galaxy on the right is LEDA 14884. This image was built up using data from the Dark Energy Survey, an ambitious project which mapped hundreds of millions of galaxies across the Universe. This was done using the Dark Energy Camera (DECam), an instrument built by the Department of Energy and mounted at the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF’s NOIRLab. Looking at this incredible image, with its thousands ofwildly diverse galaxies, it is mind-boggling to recall that only about 100 years ago, most astronomers believed that our Milky Way was the only galaxy in existence. It was not until 1925 that Edwin Hubble, building upon the work of Henrietta Leavitt and Ejnar Hertzsprung, proved that the AndromedaGalaxy must lie beyond the Milky Way, and humanity began to recognize the sheer scope of the Universe.
Usage terms	Creative Commons Attribution 4.0 International License
Date and time of data generation	13:26, 10 March 2021
JPEG file comment	The blackness of space is punctuated by bright dots. This image could almost be mistaken for a particularly detailed shot of the night sky as seen from Earth, full of stars. Appearances, however, can be deceptive. This image was taken from Earthʻs southern hemisphere, but the bright dots are not stars — they are galaxies. In fact, the distinctive, ring-shaped galaxy on the right is LEDA 14884. This image was built up using data from the Dark Energy Survey, an ambitious project which mapped hundreds of millions of galaxies across the Universe. This was done using the Dark Energy Camera (DECam), an instrument built by the Department of Energy and mounted at the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF’s NOIRLab. Looking at this incredible image, with its thousands of wildly diverse galaxies, it is mind-boggling to recall that only about 100 years ago, most astronomers believed that our Milky Way was the only galaxy in existence. It was not until 1925 that Edwin Hubble, building upon the work of Henrietta Leavitt and Ejnar Hertzsprung, proved that the Andromeda Galaxy must lie beyond the Milky Way, and humanity began to recognize the sheer scope of the Universe.
Software used	Adobe Photoshop 22.0 (Windows)
File change date and time	11:11, 30 November 2020
Date and time of digitizing	05:32, 27 July 2020
Date metadata was last modified	12:11, 30 November 2020
Unique ID of original document	xmp.did:188fbd3f-6ab4-47d5-aa53-837c3b9de76b
Keywords	LCRS B041803.7-391607
Contact information	https://noirlab.edu 950 North Cherry Ave. Tucson, AZ, 85719 USA
IIM version	4

File:A Sky Full of Galaxies.jpg

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