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) -- An unusual supernova rediscovered in seven-year-old data may be the first example of a new type of exploding star, possibly from a binary star system where helium flows from one white dwarf onto another and detonates in a thermonuclear explosion. http://www.physorg.com/news176653360.html Space & Earth Thu, 05 Nov 2009 14:33:57 EST news176653360 (PhysOrg.com) -- An international collaboration that includes scientists from the University of Delaware's Bartol Research Institute in the Department of Physics and Astronomy has discovered very-high-energy gamma rays in the Cigar Galaxy (M82), a bright galaxy filled with exploding stars 12 million light years from Earth. http://www.physorg.com/news176391501.html Space & Earth Mon, 02 Nov 2009 13:50:01 EST news176391501 Scientists at the University of York have uncovered the structure of an unusual enzyme which can be used to reverse the contamination of land by explosives. http://www.physorg.com/news174302821.html Chemistry Fri, 09 Oct 2009 10:27:31 EST news174302821 (PhysOrg.com) -- Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA's ACE (Advanced Composition Explorer) spacecraft, galactic cosmic rays have just hit a Space Age high. http://www.physorg.com/news173445919.html Space & Earth Tue, 29 Sep 2009 12:25:58 EST news173445919 (PhysOrg.com) -- Gamma-rays are the most energetic known form of electromagnetic radiation, with each gamma ray being at least one hundred thousand times more energetic than an optical light photon. The most potent gamma rays, the so-called VHE (very high energy) gamma rays, pack energies a billion times this, or even more. Astronomers think that VHE gamma rays are produced in the environment of the winds or jets of the compact, ultra-dense remnant ashes of massive stars left behind from supernova explosions. http://www.physorg.com/news173104115.html Space & Earth Fri, 25 Sep 2009 13:29:49 EST news173104115 The precise conditions inside a white dwarf star in the hours leading up to its explosive end as a Type Ia supernova are one of the mysteries confronting astrophysicists studying these massive stellar explosions. But now, a team of researchers, composed of three applied mathematicians at the U.S. Department of Energy's (DOE) Lawrence Berkeley National Laboratory and two astrophysicists, has created the first full-star simulation of the hours preceding the largest thermonuclear explosions in the universe. http://www.physorg.com/news172856010.html Space & Earth Tue, 22 Sep 2009 17:10:03 EST news172856010 In a break from its usual task of searching for distant cosmic explosions, NASA's Swift satellite has acquired the highest-resolution view of a neighboring spiral galaxy ever attained in the ultraviolet. The galaxy, known as M31 in the constellation Andromeda, is the largest and closest spiral galaxy to our own. http://www.physorg.com/news172325981.html Space & Earth Wed, 16 Sep 2009 13:30:03 EST news172325981 (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 To protect from potential terrorist attacks, federal buildings and other critical infrastructures are made with special windows that contain blast-resistant glass. However, the glass is thick and expensive. Currently, University of Missouri researchers are developing and testing a new type of blast-resistant glass that will be thinner, lighter and less vulnerable to small-scale explosions. http://www.physorg.com/news171803822.html Chemistry Thu, 10 Sep 2009 12:18:21 EST news171803822 NASA recently confirmed that the Nuclear Spectroscopic Telescope Array, or NuSTAR, mission will launch in August 2011. http://www.physorg.com/news171559714.html Space & Earth Mon, 07 Sep 2009 16:40:01 EST news171559714 Lawrence Livermore National Laboratory is leading a joint project with Los Alamos and Sandia national laboratories, as well as the Air Force Technical Applications Center (AFTAC) and Quantum Technology Sciences, Inc., to improve the accuracy of regional seismic travel time (RSTT) predictions to detect and locate low-yield nuclear explosions. http://www.physorg.com/news170957529.html Space & Earth Mon, 31 Aug 2009 17:40:02 EST news170957529 (PhysOrg.com) -- Scientists have placed high-tech "spiders" inside and around the mouth of Mount St. Helens, one of the most active volcanoes in the United States. Networks such as these could one day be used to respond rapidly to an impending eruption. http://www.physorg.com/news168874991.html Space & Earth Fri, 07 Aug 2009 14:43:56 EST news168874991 Billions of tonnes of water droplets vanish from the atmosphere, as if by magic, in events that reveal in detail how the Sun and the stars control our everyday clouds. Researchers of the National Space Institute in the Technical University of Denmark (DTU) have traced the consequences of eruptions on the Sun that screen the Earth from some of the cosmic rays - the energetic particles raining down on our planet from exploded stars. http://www.physorg.com/news168353215.html Space & Earth Sat, 01 Aug 2009 14:10:01 EST news168353215 (AP) -- Repairs to two small helium leaks in the world's largest atom smasher will delay the restart of the giant machine another month until November, a spokesman for the operator said Thursday. http://www.physorg.com/news168180155.html Physics Thu, 30 Jul 2009 13:43:42 EST news168180155 A team of international astrophysicists, including Dr Maria Lugaro from Monash University, has discovered a new explanation for the early composition of our solar system. http://www.physorg.com/news167302986.html Space & Earth Mon, 20 Jul 2009 10:03:41 EST news167302986 This beautiful image gives a new look at Stephan's Quintet, a compact group of galaxies discovered about 130 years ago and located about 280 million light years from Earth. The curved, light blue ridge running down the center of the image shows X-ray data from the Chandra X-ray Observatory. http://www.physorg.com/news166371617.html Space & Earth Thu, 09 Jul 2009 15:21:24 EST news166371617 A team of astrophysicists has solved a mystery that led some scientists to speculate that the distribution of certain gamma rays in our Milky Way galaxy was evidence of a form of undetectable "dark matter" believed to make up much of the mass of the universe. http://www.physorg.com/news166356300.html Space & Earth Thu, 09 Jul 2009 11:05:40 EST news166356300 Earth's 4.5-billion-year history is filled with several turning points when temperatures changed dramatically, asteroids bombarded the planet and life forms came and disappeared. But one of the biggest moments in Earth's lifetime is the Cambrian explosion of life, roughly 540 million years ago, when complex, multi-cellular life burst out all over the planet. http://www.physorg.com/news166288435.html Space & Earth Wed, 08 Jul 2009 16:14:18 EST news166288435 (PhysOrg.com) -- A new class of pulsars detected by NASA's Fermi Gamma-ray Space Telescope is solving the mystery of previously unidentified gamma-ray sources and helping scientists understand the mechanisms behind pulsar emissions. http://www.physorg.com/news165763241.html Space & Earth Thu, 02 Jul 2009 14:21:48 EST news165763241 Thanks to a unique "ballistic study" that combines data from ESO's Very Large Telescope and NASA's Chandra X-ray Observatory, astronomers have now solved a long-standing mystery of the Milky Way's particle accelerators. They show in a paper published today on Science Express that cosmic rays from our galaxy are very efficiently accelerated in the remnants of exploded stars. http://www.physorg.com/news165159142.html Space & Earth Thu, 25 Jun 2009 14:32:53 EST news165159142 The mysterious 1908 Tunguska explosion that leveled 830 square miles of Siberian forest was almost certainly caused by a comet entering the Earth's atmosphere, says new Cornell University research. The conclusion is supported by an unlikely source: the exhaust plume from the NASA space shuttle launched a century later. http://www.physorg.com/news165077281.html Space & Earth Wed, 24 Jun 2009 15:49:00 EST news165077281 In November 2008, Caroline Moore, a 14-year-old student from upstate New York, discovered a supernova in a nearby galaxy, making her the youngest person ever to do so. Additional observations determined that the object, called SN 2008ha, is a new type of stellar explosion, 1000 times more powerful than a nova but 1000 times less powerful than a supernova. Astronomers say that it may be the weakest supernova ever seen. http://www.physorg.com/news163905854.html Space & Earth Thu, 11 Jun 2009 02:24:57 EST news163905854 In a controversial new paper in the journal Nature, astronomers from Queen's University Belfast have proposed a new physical interpretation of a supernova discovered on 7th November 2008. http://www.physorg.com/news163760815.html Space & Earth Tue, 09 Jun 2009 10:07:23 EST news163760815 The colossal stellar explosions called supernovae come in many kinds and flavours. Some of them are produced when a massive star reaches the end of its life in a sudden gravitational collapse. Astronomers have just found one of these explosions that defies the current classification scheme. The results of this research have been published in Nature, and Calar Alto has contributed to this discovery. http://www.physorg.com/news163397750.html Space & Earth Fri, 05 Jun 2009 05:16:41 EST news163397750 (PhysOrg.com) -- While humans are still struggling to get rid of unwanted carbon it appears that the heavens are really rather good at it. New research by astrophysicists at the University of Warwick has discovered that a mystery stellar explosion recorded in 2006 may have marked the unusual death of an equally unusually carbon-rich star. http://www.physorg.com/news163061166.html Space & Earth Mon, 01 Jun 2009 07:46:41 EST news163061166 (PhysOrg.com) -- University of Delaware researchers in Sweden have launched a giant balloon taller than a football field that is now flying at the edge of space to collect data on cosmic rays -- the most super-charged particles in the universe. http://www.physorg.com/news162143391.html Space & Earth Thu, 21 May 2009 19:35:59 EST news162143391 A Princeton University geoscientist who has stirred controversy with her studies challenging a popular theory that an asteroid wiped out the dinosaurs has compiled powerful new evidence asserting her position. http://www.physorg.com/news160655449.html Space & Earth Mon, 04 May 2009 11:31:44 EST news160655449 (PhysOrg.com) -- NASA's Swift satellite and an international team of astronomers have found a gamma-ray burst from a star that died when the universe was only 630 million years old, or less than five percent of its present age. The event, dubbed GRB 090423, is the most distant cosmic explosion ever seen. http://www.physorg.com/news160143442.html Space & Earth Tue, 28 Apr 2009 13:17:50 EST news160143442 (PhysOrg.com) -- Integral has captured one of the brightest gamma-ray bursts ever seen. A meticulous analysis of the data has allowed astronomers to investigate the initial phases of this giant stellar explosion, which led to the ejection of matter at velocities close to the speed of light. In particular, the astronomers believe that the explosion lifted a piece of the central engine's magnetic field into space. http://www.physorg.com/news157976603.html Space & Earth Fri, 03 Apr 2009 11:24:02 EST news157976603 The most abundant material on Earth exhibits some unusual chemical properties when placed under extreme conditions. http://www.physorg.com/news156779157.html Chemistry Fri, 20 Mar 2009 14:46:43 EST news156779157