http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. We live in a hierarchical Universe where small structures join into larger ones. Earth is a planet in our Solar System, the Solar System resides in the Milky Way Galaxy, and galaxies combine into groups and clusters. Clusters are the largest structures in the Universe, but sadly our knowledge of them is not proportional to their size. Researchers have long known that the gas in the centers of some galaxy clusters is rapidly cooling and condensing, but were puzzled why this condensed gas did not form into stars. Until recently, no model existed that successfully explained how this was possible. http://www.physorg.com/news166793207.html Space & Earth Tue, 14 Jul 2009 12:27:35 EST news166793207 The most crowded collision of galaxy clusters has been identified by combining information from three different telescopes. This result gives scientists a chance to learn what happens when some of the largest objects in the Universe go at each other in a cosmic free-for-all. http://www.physorg.com/news159100327.html Space & Earth Thu, 16 Apr 2009 11:32:30 EST news159100327 A new Hubble image highlights striking swirling dust lanes and glittering globular clusters in oddball galaxy NGC 7049. http://www.physorg.com/news158329219.html Space & Earth Tue, 07 Apr 2009 13:20:46 EST news158329219 (PhysOrg.com) -- The Coma Galaxy Cluster, in the northern constellation of Coma Berenices, the hair of Queen Berenice, is one of the closest very rich collections of galaxies in the nearby Universe. The cluster, also known as Abell 1656, is about 320 million light-years from Earth and contains more than 1000 members. The brightest galaxies, including NGC 4921 shown here, were discovered back in the late 18th century by William Herschel. http://www.physorg.com/news153054857.html Space & Earth Thu, 05 Feb 2009 11:14:56 EST news153054857 (PhysOrg.com) -- For the first time, astronomers have clearly seen the effects of "dark energy" on the most massive collapsed objects in the universe using NASA's Chandra X-ray Observatory. By tracking how dark energy has stifled the growth of galaxy clusters and combining this with previous studies, scientists have obtained the best clues yet about what dark energy is and what the destiny of the universe could be. http://www.physorg.com/news148659036.html Physics Tue, 16 Dec 2008 14:10:36 EST news148659036 Scientists are on the hunt for evidence of antimatter - matter's arch nemesis - left over from the very early Universe. New results using data from NASA's Chandra X-ray Observatory and Compton Gamma Ray Observatory suggest the search may have just become even more difficult. http://www.physorg.com/news144583237.html Physics Thu, 30 Oct 2008 11:00:37 EST news144583237 A team of scientists, including astronomers from the Naval Research Laboratory (NRL), have detected long wavelength radio emission from a colliding, massive galaxy cluster which, surprisingly, is not detected at the shorter wavelengths typically seen in these objects. http://www.physorg.com/news143297580.html Space & Earth Wed, 15 Oct 2008 13:53:00 EST news143297580 (PhysOrg.com) -- The stars are in motion, and on a much larger scale than can be explained with current theories, according to astronomers at NASA, the University of Hawaii and UC Davis. The finding could improve our understanding of events in the first moments after the birth of the universe. http://www.physorg.com/news141489744.html Space & Earth Wed, 24 Sep 2008 15:42:24 EST news141489744 (PhysOrg.com) -- Using data from NASA's Wilkinson Microwave Anisotropy Probe (WMAP), scientists have identified an unexpected motion in distant galaxy clusters. The cause, they suggest, is the gravitational attraction of matter that lies beyond the observable universe. http://www.physorg.com/news141392399.html Space & Earth Tue, 23 Sep 2008 12:39:59 EST news141392399 (PhysOrg.com) -- ESA's orbiting X-ray observatory XMM-Newton has discovered the most massive cluster of galaxies seen in the distant Universe until now. The galaxy cluster is so big that there can only be a handful of them at that distance, making this a rare catch indeed. The discovery confirms the existence of dark energy. http://www.physorg.com/news138890440.html Space & Earth Mon, 25 Aug 2008 13:40:40 EST news138890440