http://netvouz.com/tag/galaxies?feed=rss Bookmarks tagged with "galaxies" on Netvouz http://amazing-space.stsci.edu/capture/ Black holes Comets & asteroids Electromagnetic spectrum/ Light and color Galaxies Gravity History of science Hubble Space Telescope Solar system Stars & stellar evolution pdboyer Sat, 06 Nov 2010 20:49:46 GMT http://chandra.harvard.edu/photo/2004/darkenergy/ A galaxy cluster is comprised on hundreds of galaxies embedded in a cloud of extremely hot gas and dark matter. Dark matter, an invisible and unknown type of material, is postulated to hold clusters together. X-ray observations have the unique ability to determine the ratio of the mass of the hot gas and the mass of the dark matter in a cluster. The observed values of the gas fraction depend on the assumed distance to the cluster. pdboyer Sat, 06 Nov 2010 19:41:34 GMT http://acme.com/chumaker/chumaker.cgi?line1=Shop+Only&line2=At+The&line3=Gluten-Free+Mall+&line4=Your+Special&line5=Diet+Superstore!&line6=www.GlutenFreeMall.com&line7=Gluten+Free+Food!&r=536670087 Go Frank Chu! manuelfangio Fri, 26 Jun 2009 23:52:57 GMT http://www.jpl.nasa.gov/stars_galaxies/stars_galaxies_index.html Links > Astronomy & Science > Astronomy orangezest Sun, 22 Jan 2006 06:51:01 GMT http://www.niji.or.jp/home/taku-t/CCD/index2.html Science > Astronomy mcswell Thu, 18 Nov 2004 15:10:48 GMT http://www.astrosurf.com/prosperi/glx/glx.htm Science > Astronomy mcswell Thu, 18 Nov 2004 15:10:47 GMT http://www.theastronomycafe.net/ A web site written by a professional astronomer which explains modern astronomy, what a career in astronomy is like, and answers over 4000+ popular questions from an on-line FAQ archive called Ask the Astronomer Science > Astronomy BearCan Mon, 16 Oct 2000 01:06:44 GMT