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. (PhysOrg.com) -- Ram pressure is the drag force that results when something moves through a fluid -- much like the wind you feel in your face when bicycling, even on a still day -- and occurs in this context as galaxies orbiting about the centre of the cluster move through the intra-cluster medium, which then sweeps out gas from within the galaxies. http://www.physorg.com/news173529292.html Space & Earth Wed, 30 Sep 2009 11:36:07 EST news173529292 (PhysOrg.com) -- A huge galaxy neighbouring our own Milky Way appears to have expanded by "digesting" smaller galaxies nearby, a new study has shown. http://www.physorg.com/news171121640.html Space & Earth Wed, 02 Sep 2009 14:49:12 EST news171121640 (PhysOrg.com) -- This composite image of the Hydra A galaxy cluster shows 10-million- degree gas observed by Chandra in blue and jets of radio emission observed by the Very Large Array in pink. Optical data from the Canada- France-Hawaii telescope and the Digitized Sky Survey shows galaxies in the cluster. http://www.physorg.com/news172158999.html Space & Earth Mon, 14 Sep 2009 15:00:59 EST news172158999 The Universe's infant galaxies enjoyed rapid growth spurts forming stars like our sun at a rate of up to 50 stars a year, according to scientists at Durham University. http://www.physorg.com/news177138435.html Space & Earth Wed, 11 Nov 2009 05:08:17 EST news177138435 (PhysOrg.com) -- NASA's Spitzer Space Telescope has imaged a wild creature of the dark -- a coiled galaxy with an eye-like object at its center. http://www.physorg.com/news167583105.html Space & Earth Thu, 23 Jul 2009 16:40:01 EST news167583105 A supermassive black hole may be responsible for the glowing appearance of galaxy 3C 305, located about 600 million light years away in the constellation Draco. Composite data from NASA`s Chandra X-ray Observatory and other telescopes suggests that the black hole may be interacting with interstellar gas and emitting X-rays. Or, bright radiation from regions near the black hole may infuse energy into the gas that makes it glow. http://www.physorg.com/news161533193.html Space & Earth Thu, 14 May 2009 15:20:45 EST news161533193 (PhysOrg.com) -- The nucleus of an active galaxy, an AGN, contains a massive black hole that is vigorously accreting material. In the process it typically ejects jets of particles and radiates brightly at many wavelengths, in particular at X-ray wavelengths. http://www.physorg.com/news177337799.html Space & Earth Fri, 13 Nov 2009 12:30:51 EST news177337799 In the new ESO image, Barnard's Galaxy glows beneath a sea of foreground stars in the direction of the constellation of Sagittarius (the Archer). At the relatively close distance of about 1.6 million light-years, Barnard's Galaxy is a member of the Local Group, the archipelago of galaxies that includes our home, the Milky Way. The nickname of NGC 6822 comes from its discoverer, the American astronomer Edward Emerson Barnard, who first spied this visually elusive cosmic islet using a 125-millimetre aperture refractor in 1884. http://www.physorg.com/news174718249.html Space & Earth Wed, 14 Oct 2009 05:52:04 EST news174718249 (PhysOrg.com) -- Stars, the most familiar objects in the night sky, make up only a tiny percentage of the total amount of matter in the universe -- about 2%. http://www.physorg.com/news176122887.html Space & Earth Fri, 30 Oct 2009 12:02:34 EST news176122887 (PhysOrg.com) -- Just as many people are surprised to find themselves packing on unexplained weight around the middle, astronomers find the evolution of bulges in the centres of spiral galaxies puzzling. A recent NASA/ESA Hubble Space Telescope image of NGC 4710 is part of a survey that astronomers have conducted to learn more about the formation of bulges, which are a substantial component of most spiral galaxies. http://www.physorg.com/news177764242.html Space & Earth Wed, 18 Nov 2009 10:58:27 EST news177764242 (PhysOrg.com) -- Which come first, the supermassive black holes that frantically devour matter or the enormous galaxies where they reside? A brand new scenario has emerged from a recent set of outstanding observations of a black hole without a home: black holes may be `building` their own host galaxy. This could be the long-sought missing link to understanding why the masses of black holes are larger in galaxies that contain more stars. http://www.physorg.com/news178804126.html Space & Earth Mon, 30 Nov 2009 11:49:22 EST news178804126 The most distant galaxy cluster yet has been discovered by combining data from NASA's Chandra X-ray Observatory and optical and infrared telescopes. The cluster is located about 10.2 billion light years away, and is observed as it was when the Universe was only about a quarter of its present age. http://www.physorg.com/news175436330.html Space & Earth Thu, 22 Oct 2009 13:19:55 EST news175436330 Herschel opened its 'eyes' on 14 June and the Photoconductor Array Camera and Spectrometer obtained images of M51, 'the whirlpool galaxy' for a first test observation. Scientists obtained images in three colours from the observation, which clearly demonstrate the superiority of Herschel, the largest infrared space telescope ever flown. http://www.physorg.com/news164624833.html Space & Earth Fri, 19 Jun 2009 10:07:37 EST news164624833 (PhysOrg.com) -- A new website will give everyone the chance to contribute to science by playing a 'cosmic fruit machine' and compare images of colliding galaxies with millions of simulated images of galactic pile-ups. http://www.physorg.com/news178264605.html Space & Earth Tue, 24 Nov 2009 05:57:19 EST news178264605 (PhysOrg.com) -- University of Hawaii (UH) astronomer Dr. Tomotsugu Goto and colleagues have discovered a giant galaxy surrounding the most distant supermassive black hole ever found. The galaxy, so distant that it is seen as it was 12.8 billion years ago, is as large as the Milky Way galaxy and harbours a supermassive black hole that contains at least a billion times as much matter as our Sun. The scientists set out their results in a paper in the journal Monthly Notices of the Royal Astronomical Society later this month. http://www.physorg.com/news171105318.html Space & Earth Wed, 02 Sep 2009 10:15:45 EST news171105318