Thursday, April 11, 2013

ScienceDaily: Dark Matter News

ScienceDaily: Dark Matter News


Dark lightning: Are airplane passengers exposed to radiation from intense bursts of gamma-rays from thunderclouds?

Posted: 10 Apr 2013 05:27 AM PDT

Scientists have known for almost a decade that thunderstorms are capable of generating brief but powerful bursts of gamma-rays called terrestrial gamma-ray flashes, or TGFs. Because they can originate near the same altitudes at which commercial aircraft routinely fly, scientists have been trying to determine whether or not terrestrial gamma ray flashes present a radiation hazard to individuals in aircraft. In the middle of the storm, radiation doses could be roughly equal to a full-body CT scan, preliminary research suggests.

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