News tagged with dark matter
Related topics: galaxies , dark energy , universe , physical review letters , black holes
Is the Milky Way doomed to be destroyed by galactic bombardment? Probably not
(PhysOrg.com) -- As scientists attempt to learn more about how galaxies evolve, an open question has been whether collisions with our dwarf galactic neighbors will one day tear apart the disk of the Milky ...
Aug 31, 2009 |
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Has PAMELA Already Seen Dark Matter?
(PhysOrg.com) -- Back in 2006, PAMELA (a Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics) was launched with the purpose of detecting cosmic radiation and looking for clues pointing ...
Aug 25, 2009 |
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Simple Explanation for Mysterious Observations
Recently, several astronomical experiments have revealed mysterious components of elementary particles. But up until now, the origin of electrons and positrons is unknown. Is dark matter the actual origin of this radiation, ...
Aug 18, 2009 |
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In Search of Antimatter Galaxies
NASA's space shuttle program is winding down. With only about half a dozen more flights, shuttle crews will put the finishing touches on the International Space Station (ISS), bringing to an end twelve years ...
Aug 17, 2009 |
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Particles as tracers for the most massive explosions in the Milky Way
Astronomers recently observed a mysterious flux of particles in the universe, and the hope was born that this may be the first observation of the remnants of "dark matter". But scientists from the University ...
Aug 11, 2009 |
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Dark Matter May be Easier to Detect than Previously Thought
(PhysOrg.com) -- The Milky Way, like many other galaxies, is thought to be embedded in massive, lumpy amounts of dark matter that release gamma rays and other emissions. Although at first these emissions seem ...
Aug 10, 2009 |
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Cosmic Dance Helps Galaxies Lose Weight
(PhysOrg.com) -- A study published this week in the journal Nature offers an explanation for the origin of dwarf spheroidal galaxies. The research may settle an outstanding puzzle in unders ...
Jul 29, 2009 |
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Australia gets $72 million for the Giant Magellan Telescope
Pasadena, CA-The Australian government has announced that it will provide $88.4 million AUD ($72.4 million USD) to help fund the revolutionary 25-meter Giant Magellan Telescope (GMT) to be sited at Las Campanas ...
Jul 28, 2009 |
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Large Area Telescope explores high-energy particles
(PhysOrg.com) -- NASA's Fermi Gamma-ray Space Telescope is making some exciting discoveries about cosmic rays and the Large Area Telescope aboard Fermi is the tool in this investigation. Scientists in the ...
Jul 28, 2009 |
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Columbia Researchers Lead Race to Find Dark Matter
(PhysOrg.com) -- Inside a mountain range in central Italy, Columbia researchers are trying to solve one of the most pressing questions in modern physics: What is dark matter? The riddle has obsessed astronomers ...
Jul 27, 2009 |
3.7 / 5 (6) |
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NASA celebrates Chandra X-Ray Observatory's 10th anniversary (w/ Video)
Ten years ago, on July 23, 1999, NASA's Chandra X-ray Observatory was launched aboard the space shuttle Columbia and deployed into orbit. Chandra has doubled its original five-year mission, ushering in an ...
Jul 23, 2009 |
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Physicists on the prowl for dark matter
(PhysOrg.com) -- 95%. That is the percentage of the known Universe that is missing. As in it is not there. Or at least if it is there, we can't see it. We call this unseen stuff "dark matter". That has been ...
Jul 23, 2009 |
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Integral satellite disproves dark matter origin for mystery radiation
(PhysOrg.com) -- A team of researchers working with data from ESA’s Integral gamma-ray observatory has disproved theories that some form of dark matter explains mysterious radiation in the Milky Way.
Jul 22, 2009 |
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Simulations Illuminate Universe's First Twin Stars (w/ Video)
(PhysOrg.com) -- The earliest stars in the universe formed not only as individuals, but sometimes also as twins, according to a paper published today in Science Express. By creating robust simulations of the ...
Jul 09, 2009 |
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Astrophysicists solve mystery in Milky Way galaxy
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" ...
Jul 09, 2009 |
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