File:Sig07-008.jpg

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Summary

DescriptionSig07-008.jpg	English: Stellar streams. From the souce: "Three newly-discovered streams arcing high over the Milky Way Galaxy are remnants of cannibalized galaxies and star clusters. The streams are between 13,000 and 130,000 light-years distant from Earth and extend over much of the Northern sky. Two of the newly discovered streams are almost certainly the remains of ancient star clusters, known to astronomers as globular clusters...." Polski: 3 strumienie gwiazd odkryte w 2007 roku
Date	30 May 2007
Source	http://www.spitzer.caltech.edu/images/2138-sig07-008-Rings-Around-the-Galaxy-Annotated-
Author	NASA
Other versions	Derivative works of this file: Courants stellaires de la Voie lactée.jpg:

Licensing

	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.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:11, 11 July 2023		2,400 × 3,000 (609 KB)	OptimusPrimeBot	#Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/sig07-008.jpg via Commons:Spacemedia
	16:17, 20 April 2010		720 × 900 (74 KB)	John Belushi	{{Information \|Description={{en\|1=Stellar streams}} {{pl\|1=3 strumienie gwiazd odkryte w 2007 roku}} \|Source=http://www.spitzer.caltech.edu/Media/happenings/20070530/ \|Author=NASA \|Date=2007-05-30 \|Permission= \|other_versions= }} Category:NASA

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Usage on af.wikipedia.org
- Virgo-sterrestroom
- Sterrestroom
Usage on ar.wikipedia.org
Usage on ca.wikipedia.org
- Corrent estel·lar de la Verge
Usage on de.wikipedia.org
- Sternstrom
- Virgo Overdensity
Usage on en.wikipedia.org
- Virgo Stellar Stream
- List of stellar streams
Usage on fr.wikipedia.org
Usage on hr.wikipedia.org
- Zvjezdani potok
Usage on it.wikipedia.org
Usage on ja.wikipedia.org
- 恒星ストリーム
Usage on ko.wikipedia.org
- 처녀자리 성류
Usage on lb.wikipedia.org
- Stärestroum
Usage on pl.wikipedia.org
Usage on pt.wikipedia.org
- Corrente estelar de Virgem
- MilkyWay@home
Usage on ru.wikipedia.org
- Звёздный поток
- Поток Стрельца
Usage on th.wikipedia.org
- ธารดาวฤกษ์
Usage on uk.wikipedia.org
Usage on www.wikidata.org
- Q32873
Usage on zh.wikipedia.org
- 星流

Metadata

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Author	Spitzer Space Telescope
Copyright holder	http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml
Credit/Provider	NASA/JPL-Caltech/R. Hurt (SSC/Caltech).
Source	NSF's NOIRLab
Image title	When our galaxy cannibalizes other galaxies, our galaxy’s gravity pulls stars out of the other galaxies, forming streams of stars wrapped around and throughout the Milky Way.
Short title	Rings Around the Galaxy (Annotated)
Usage terms	Creative Commons Attribution 4.0 International License
Date and time of data generation	06:59, 19 April 2022
JPEG file comment	Three newly-discovered streams arcing high over the Milky Way Galaxy are remnants of cannibalized galaxies and star clusters. The streams are between 13,000 and 130,000 light-years distant from Earth and extend over much of the Northern sky.  Two of the newly discovered streams are almost certainly the remains of ancient star clusters. Known to astronomers as globular clusters, these giant stellar cities contain between tens of thousands and millions of stars. Though only about 150 globular clusters orbit the Milky Way today, they may once have numbered in the thousands.  Over billions of years, the relentless gravitational stresses inflicted on them by our galaxy have slowly torn them apart, leaving behind long, thin streams of stars. Once crowded so closely together that they could sometimes actually collide, these stars are now separated by many light-years, trailing one another at half a million miles an hour through the dark and lonely reaches of the galactic halo.  The third stream is spread over a much larger region of the sky, and is most likely the scattered remains of a dwarf galaxy. Such dwarf galaxies may contain up to 100 million stars, along with sometimes substantial amounts of mysterious "dark matter." While the Milky Way galaxy currently hosts a family of 20 or so known dwarf galaxies, scientists who study the growth of galaxies in the early universe have long been puzzled as to why we don't see hundreds of them.
Software used	Adobe Photoshop CS3 Macintosh
File change date and time	12:24, 13 November 2008
Contact information	https://noirlab.edu 950 North Cherry Ave. Tucson, AZ, 85719 USA
Keywords	Milky Way
IIM version	4

File:Sig07-008.jpg

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File:Sig07-008.jpg

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Berkeley Open Infrastructure for Network Computing projects

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30 May 2007

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