ScienceCast 88: Dark Lightning

published 8 years ago

Dark lightning presented by science at NASA. NASA's ferme gamma ray space telescope was launched in 2008 on a mission to study high energy phenomena in our universe. The telescope routinely detects things like flares powered by black holes in distant galaxies or outbursts from massive stars going supernova. So in 2010 researchers were not surprised when the telescope was hit by a beam of high energy positrons the antimatter equivalent of electrons. That's the sort of thing for me is out there looking for. But they were surprised when they realized where the anti matter came from not from some black hole light years across the galaxy but rather from our own planet. The source was a thunderstorm just 3000 miles. Earth's magnetic field seems to have corralled ...

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