File:The Outer Regions of NGC 2976.jpg

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English: Astronomers were surprised to find that star-formation activities in the outer regions of NGC 2976 have been virtually asleep because they shut down millions of years ago. The celebration is confined to a few die-hard party-goers huddled in the galaxy’s inner region. The explanation, astronomers say, is that a raucous interaction with M81, a neighbouring group of hefty galaxies, ignited star birth in NGC 2976. Now the star-making fun is beginning to end. Images from NASA’s Hubble Space Telescope show that star formation in the galaxy began fizzling out in its outskirts about 500 million years ago as some of the gas was stripped away and the rest collapsed toward the centre. With no gas left to fuel the party, more and more regions of the galaxy are taking a much-needed nap. The star-making region is now confined to about 5,000 light-years around the core.
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Author NASA, ESA, and J. Dalcanton and B. Williams (University of Washington, Seattle)
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This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.

The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org.

For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.

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current14:49, 19 January 2010Thumbnail for version as of 14:49, 19 January 20103,337 × 2,331 (10.42 MB)Tryphon (talk | contribs)Original file, from http://imgsrc.hubblesite.org/hu/db/images/hs-2010-05-a-full_jpg.jpg.
11:16, 18 January 2010Thumbnail for version as of 11:16, 18 January 20102,777 × 1,937 (1.19 MB)Cropbot (talk | contribs)upload cropped version, operated by User:Originalwana. Summary: cropped
11:15, 18 January 2010Thumbnail for version as of 11:15, 18 January 20103,000 × 2,400 (1.25 MB)Originalwana (talk | contribs){{Information |Description={{en|1=Astronomers were surprised to find that star-formation activities in the outer regions of NGC 2976 have been virtually asleep because they shut down millions of years ago. The celebration is conf

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