News tagged with hole
Black Holes Go 'Mano a Mano'
Oct 06, 2009 |
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(PhysOrg.com) -- Two black holes in galaxy NGC 6240 are only 3,000 light years apart -- and getting closer.
Cosmic entropy could be 100 times greater than previously thought
Oct 06, 2009 |
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(PhysOrg.com) -- A new analysis of supermassive black holes has discovered the entropy of the universe is much greater than previously thought, which means it may also be very slightly closer to ultimate heat death.
Ozone: Climate change boosts ultraviolet risk for high latitudes
Space & Earth / Earth Sciences
Sep 06, 2009 |
2.2 / 5 (13) |
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(PhysOrg.com) -- Physicists at the University of Toronto have discovered that changes in the Earth's ozone layer due to climate change will reduce the amount of ultraviolet (UV) radiation in northern high ...
Giant Galaxy Hosts the Most Distant Supermassive Black Hole
Sep 02, 2009 |
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(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 ...
Living fossils hold record of 'supermassive' kick
Jul 09, 2009 |
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The tight cluster of stars surrounding a supermassive black hole after it has been violently kicked out of a galaxy represents a new kind of astronomical object and a fossil record of the kick.
Stellar family in crowded, violent neighborhood proves to be surprisingly normal
Jun 04, 2009 |
4.7 / 5 (6) |
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The massive Arches Cluster is a rather peculiar star cluster. It is located 25 000 light-years away towards the constellation of Sagittarius (the Archer), and contains about a thousand young, massive stars, ...
Ghost remains after black hole eruption
May 28, 2009 |
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NASA's Chandra X-ray Observatory has found a cosmic "ghost" lurking around a distant supermassive black hole. This is the first detection of such a high-energy apparition, and scientists think it is evidence ...
XMM-Newton takes astronomers to a black hole's edge
May 27, 2009 |
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(PhysOrg.com) -- Using new data from ESA's XMM-Newton spaceborne observatory, astronomers have probed closer than ever to a supermassive black hole lying deep at the core of a distant active galaxy.
Most distant detection of water in the Universe
Apr 22, 2009 |
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(PhysOrg.com) -- Astronomers have found the most distant signs of water in the Universe to date. Dr John McKean of the Netherlands Institute for Radio Astronomy (ASTRON) will be presenting the discovery at ...
Increasing Antarctic sea ice extent linked to the ozone hole
Space & Earth / Earth Sciences
Apr 21, 2009 |
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Increased growth in Antarctic sea ice during the past 30 years is a result of changing weather patterns caused by the ozone hole according to new research published this week (Thurs 23 April 2009).
New simulation shows consequences of a world without Earth's natural sunscreen (w/Video)
Space & Earth / Earth Sciences
Mar 19, 2009 |
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(PhysOrg.com) -- The year is 2065. Nearly two-thirds of Earth's ozone is gone -- not just over the poles, but everywhere. The infamous ozone hole over Antarctica, first discovered in the 1980s, is a year-round ...
Astrophysicists explore a blazar
Mar 18, 2009 |
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An international team of astrophysicists using telescopes on the ground and in space have uncovered surprising changes in radiation emitted by an active galaxy. The picture that emerges from these first-ever ...
A Newtonian system that mimics the baldness of rotating black holes
Feb 23, 2009 |
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(PhysOrg.com) -- The rotating black hole has been described as one of nature's most perfect objects. As described by the Kerr solution of Einstein's gravitational field equations, its spacetime geometry is ...
Fermi Gamma-Ray Space Telescope Sees Most Extreme Gamma-Ray Blast Ever
Feb 19, 2009 |
4.6 / 5 (18) |
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(PhysOrg.com) -- With the greatest total energy, the fastest motions, and the highest-energy initial emissions ever before seen, a gamma-ray burst recently observed by the Fermi Gamma-ray Space Telescope is ...
Study links swings in North Atlantic oscillation variability to climate warming
Space & Earth / Earth Sciences
Jan 13, 2009 |
4.1 / 5 (18) |
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Using a 218-year-long temperature record from a Bermuda brain coral, researchers at the Woods Hole Oceanographic Institution (WHOI) have created the first marine-based reconstruction showing the long-term behavior of one ...
