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... 2000 May 19 . An Aurora Before the Storm . Credit Copyright: Jan Curtis ( U. Alaska ), ACRC . Explanation: Early April brought some of the most intense auroral storms this decade. ... Auroral activity occurs high in the Earth's atmosphere and is a direct result of storms on our Sun . As huge sheets of charged particles stream out from the Sun, a small fraction of these particles are funneled in by Earth's magnetic field and strike atoms high in the atmosphere, causing the sky to glow. ...

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Astronomy Picture of the Day . A Colorful Aurora . ... 1.09.1998 . ... Credit: Stephen Barnes , Sky Optics Explanation: A solar storm overtook the Earth on August 26th. ... Solar particles that strike oxygen high in Earth's atmosphere cause rare, red auroras , while oxygen lower to the ground will glow a more familiar green. ... August . ... Publications with keywords: aurora - Earth - atmosphere . Publications with words: aurora - Earth - atmosphere . ... Aurora in the Distance . ...

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... But there also exists a practical angle: in a world increasingly dependent on electricity and electronics, the "space weather" outside the atmosphere can have serious effects, in particular on human communications. Currently more than 200 communication satellites circle the Earth in synchronous orbit . ... For a view of NOAA's "space weather report," click here ; another such report, from the University of Michigan, is linked here . ... Another such event occured April 7-11, 1997 . ...

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home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... People always have felt the lure of the Moon, as shown by the lunar rites practiced 5,000 years ago in northeast Scotland and the contemporary myth that people go wild during full Moons. ... One day, Earth smacked into one of those other agglomerating worlds, a wandering object the size of Mars. ... For additional information, visit our World Wide Web site at http://www.physics.sfsu.edu/asp/mercury/observer.html. ...

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