Binary 'deathstar' has Earth in its sights
www.cosmosmagazine.com
A spectacular, rotating binary star system is a ticking time bomb, ready to throw out a searing beam of high-energy gamma rays – and Earth
may be right in the line of fire.A 2005 study showed that a gamma-ray burst originating within 6,500 light-years of Earth could be enough to strip
away the ozone layer and cause a mass extinction.
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