File:Earth plasmasphere in EUV.jpg

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Deutsch: Das Aufnahmegerät für extremes ultraviolettes Licht (EUV) an Bord von IMAGE nahm dieses Bild des ultravioletten Leuchtens von relativ kaltem Plasma auf, das unseren Planeten umgibt. Ein hakenförmiger "Ausläufer" von Plasma, nahe der oberen rechten Ecke, strömt Richtung Sonne. Der kleine, schwache Kreis nahe der Bildmitte entsteht durch ultraviolette Strahlung einer Aurora borealis (oder "Polarlicht"). Das "relativ kalte Plasma" ist die Plasmasphäre der Erde. Entgegen der unglücklichen Bezeichnung als "Ausläufer" in der ursprünglichen Presseveröffentlichung der NASA ist der kleine Haken links kein magnetischer Ausläufer wie der riesige Ausläufer des Erdmagnetfelds (Magnetotail), sondern ein relativ kleines Abreißen von Plasmasphärenmaterial. Für die vollständige Beschreibung, siehe http://science.nasa.gov/headlines/y2001/ast25jan_1.htm. Siehe auch die Diskussionseite.
English: The Extreme Ultraviolet imager (EUV) instrument on board IMAGE captured this picture of the ultraviolet glow from relatively cold plasma surrounding our planet. A hook-shaped "tail" of plasma, near the top-right, streams toward the Sun. The small, faint circle near the center of the image traces ultraviolet radiation from aurora borealis (or "Northern Lights"). The "relatively cold plasma" is the Earth's plasmasphere. The small hook at left, unfortunately cited as a "tail" in the NASA press release, is not a magnetic tail like the Earth's huge magnetotail, but a relatively small peeling off of material from the plasmasphere. For full description, see http://science.nasa.gov/headlines/y2001/ast25jan_1.htm. See also the discussion page.
Source http://image.gsfc.nasa.gov/press_release/image_pr_20010125.html
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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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