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Supernova Condensate

Ribbon in the Sky

17 Oct 2009, 14:42 UTC
Ribbon in the Sky
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Remember IBEX? NASA's Interstellar Boundary Explorer has been mapping the outer limits of the solar system from a highly eccentric Earth orbit for almost a year now. It was designed to observe the Sun's heliosphere -- the bubble blown in the interstellar medium by the solar wind. What it found was such a surprise that it's left theoreticians and solar physicists a bit bewildered.(Read more ...)

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