File:Counting the Youth in a Middle Aged Galaxy.jpg

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Description	English: This image is roughly 1/34 of the entire GLIMPSE Survey of our Milky Way galaxy. This small section is riddled with young stellar objects (circles). The number of young stars was used to estimate the heartbeat of the Milky Way, or how fast new stars are being born.
Date	10 March 2010
Source	http://www.spitzer.caltech.edu/images/2994-sig10-002-Counting-the-Youth-in-a-Middle-Aged-Galaxy
Author	NASA / JPL-Caltech / T. Robitaille (Harvard-Smithsonian Center for Astrophysics), GLIMPSE Team

Image use policy: http://www.spitzer.caltech.edu/info/18-Image-Use-Policy

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	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	20:25, 13 June 2011		1,500 × 1,200 (340 KB)	Spitzersteph (talk \| contribs)

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Image title	This image roughly 1/34 of the entire GLIMPSE Survey. This small section is riddled with young stellar objects, counted by Robitaille and his team.
Copyright holder	http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml
Width	3,000 px
Height	2,400 px
Compression scheme	LZW
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CS3 Macintosh
File change date and time	16:16, 10 March 2010
Color space	Uncalibrated

File:Counting the Youth in a Middle Aged Galaxy.jpg

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