Muon surplus leaves physicists searching for answers
Excess of subatomic particles produced by cosmic rays might signal new state of matter
![Pierre Auger Observatory](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/11/110316_ec_Augermuons_free.jpg?fit=860%2C460&ssl=1)
MANY MUONS Scientists at the Pierre Auger Observatory use telescopes (pictured above) and water tanks to detect showers of particles created by high-energy protons or atomic nuclei from space. Scientists have found more muons, or larger versions of electrons, than expected in such showers.
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