Mysterious Light at the Edge of the Galaxy
It may not be blue, but it’s THERE: At the border between our solar system and the rest of the galaxy, NASA’s new Interstellar Boundary Explorer (IBEX) spacecraft, launched in October, has spotted a band of mysterious high-energy emissions.
On the Skywatchers website, Clara Moskowitz quotes IBEX investigator David mcComas as saying, “The IBEX results are truly remarkable, with emissions not resembling any of the current theories or models of this never-before-seen region. We expected to see small, gradual spatial variations at the interstellar boundary, some 10 billion miles away. However, IBEX is showing us a very narrow ribbon that is two to three times brighter than anything else in the sky.”
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