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Episode 131: Death Rays

Play Nov 22•4:17

Every 62 million years or so, a mass extinction occurs on Earth. A new theory about the motion of the solar system around the Milky Way says cosmic rays may be involved. Charged particles caused by the motion could expose the Earth to high-energy radiation, damaging the biosphere and affecting the environment. University of Kansas Cosmology Group article on the theory. Physics Today on the ...

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