New sky map charts previously unknown gamma-ray sources

Supersensitive detector can trace highest energy photons

gamma ray map

BRIGHT SKY  A map of two-thirds of the sky shows bright spots where high energy gamma rays originate, including in the Milky Way (left) as well as nearby galaxies, such as Markarian 421 and Markarian 501. (Constellations are superimposed for orientation.)

HAWC Collaboration

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