File:Hs-2014-26-a-web print.jpg

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English: This is a Hubble Space Telescope photograph of a never-before-seen string of pearls twisted into a corkscrew shape that winds around the cores of two colliding galaxies. The "pearls" are superclusters of blazing, blue-white, newly born stars. The whole assembly must result from the gravitational tidal forces present in the galaxy collision. The serendipitous discovery was made while astronomers were studying the galaxy cluster SDSS J1531+3414. The underlying physics behind the "beads on a string" shape is related to describing the behavior of self-gravitating clumps of gas. It's analogous to the process where rain falls in drops rather than in continuous filaments from clouds. It's called the Jeans instability, and it can play out on distance scales of enormous orders of magnitude.
Italiano: SDSS J1531+3414; l'ingrandimento mostra le due galassie ellittiche con gli ammassi di stelle neoformate
Date
Source http://hubblesite.org/newscenter/archive/releases/2014/26/image/a/
Author NASA, ESA, and G. Tremblay (European Southern Observatory)

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Public domain 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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Date/TimeThumbnailDimensionsUserComment
current14:00, 27 July 2015Thumbnail for version as of 14:00, 27 July 20151,200 × 891 (715 KB)Mylkomeda (talk | contribs)User created page with UploadWizard

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