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Surprise Discovery In Earth's Upper Atmosphere

elyons sends word out of UCLA of a completely unexpected discovery in the physics of the Sun-Earth interaction — a previously unknown basic mode of energy transfer from the solar wind to the Earth's magnetosphere. "'It's like something else is heating the atmosphere besides the sun. This discovery is like finding it got hotter when the sun went down,' said Larry Lyons, UCLA professor of atmospheric and oceanic sciences. 'We all have thought for our entire careers — I learned it as a graduate student — that this energy transfer rate is primarily controlled by the direction of the interplanetary magnetic field. The closer to southward-pointing the magnetic field is, the stronger the energy transfer rate is, and the stronger the magnetic field is in that direction. [It turns out that] if it is both southward and big, the energy transfer rate is even bigger.'" The researchers have two papers on the discovery coming out in the Journal of Geophysical Research.

2 of 243 comments (clear)

  1. Misleading interpretation by mudshark · · Score: 5, Insightful

    Saying "It's like something else is heating the atmosphere besides the sun" when they're talking about the interaction of the solar wind and the magnetosphere is more than a little disingenuous....

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    In other news, astrophysicists have announced that they now know what all that dark matter is: it's stupidity.
  2. The Hell? by Anonymous Coward · · Score: 5, Insightful

    Why is this being tagged "climate change" with people yammering about global warming? This is a previously unexpected form of energy transfer but would have been occuring since...oh...our planet had a magnetosphere and there is not a single mention in the article concerning climate change or global warming.