Particle Physics

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LHC tunnel

CERN has confirmed that a tiny, unnamed weasel took down the Large Hadron Collider this morning. 

illustration of proton collision

NEW LIGHT A possible new particle shows up in proton collisions at the Large Hadron Collider that produce two photons, as in an event (illustrated here) seen by the CMS detector.

illustration of a blazar

BLAZING GALAXY  Blazars, like the one in this illustration, blast a jet of light and matter towards Earth; they may also be the source of ultra-high energy neutrinos.

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