Crab Nebula Has Hit Earth with Highest-Energy Light Ever Recorded

Six thousand five hundred years ago, a high-energy photon was born in the Crab Nebula (remnant of a supernova observed by Chinese astronomers); today it reached Earth

NASA/VICTOR TANGERMANN

The Tibet Air Shower Array has detected extremely high-energy photons from the Crab Nebula, which is some 6,500 light-years away from Earth.

Source: Crab Nebula Has Hit Earth with Highest-Energy Light Ever Recorded

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