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| Tags: astronomy, case, dark, energy, repulsive, strengthening |
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Sam Wormley wrote in message ...
Ref: http://www.sciencenews.org/20030802/fob1.asp Science News - Week of Aug. 2, 2003; Vol. 164, No. Repulsive Astronomy: Strengthening the case for dark energy Ron Cowen Astronomers have found new evidence for one of the strangest properties of the universe. A mysterious substance, dubbed dark energy, appears to be ripping the cosmos apart, causing the universe to expand at an ever-faster rate. The wrenching findings come from a correlation between two kinds of sky maps-one that denotes the positions of large numbers of galaxies and another, a snapshot of the cosmic microwave background, which is the remnant radiation from the Big Bang. By comparing the maps, astronomers have found the imprint of dark energy, which pushes objects apart and thus counters gravity's familiar tug. Previous support for dark energy has been based on the brightness of distant stellar explosions known as supernovas (SN: 3/31/01, p. 196: Available to subscribers at http://www.sciencenews.org/20010331/fob1.asp). With only one line of evidence, however, some researchers weren't convinced. "Since the implications of dark energy are so profound for physics, having multiple, independent lines of evidence for its existence is absolutely essential," says Joshua A. Frieman of the Fermi National Accelerator Laboratory in Batavia, Ill., a coauthor of one of four dark-energy studies recently posted online. Each study uses data from the Wilkinson Microwave Anisotropy Probe (WMAP), a satellite that is generating detailed maps of the cosmic microwave background (SN: 2/15/03, p. 99: http://www.sciencenews.org/20030215/fob1.asp). See: http://www.sciencenews.org/20030802/fob1.asp The outer edge of the universe is speeding up by anti-gravity. Just as time slows down in gravity - time and light speed up by anti-gravity. This could cause time to possibly move equally for objects being moved away from each other by this force. Understanding that this is happening to space-time at its edge is for me the end of physics. Anti-gravity is stretching space-time causing light to move faster there. Just as there is contraction there is space-time expansion. Light goes fsster in this faster time. Property of Mitch Raemsch |
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