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These proceedings address a recent publication by the ANITA collaboration offour upward- pointing cosmic-ray-like events observed in the first flight ofANITA. Three of these events were consistent with stratospheric cosmic-ray airshowers where the axis of propagation does not inter- sect the surface of theEarth. The fourth event was consistent with a primary particle that emergesfrom the surface of the ice suggesting a possible {\tau}-lepton decay as theorigin of this event. These proceedings follow-up on the modeling and testingof the hypothesis that this event was of {\tau} neutrino origin.

Upward-Pointing Cosmic-Ray-like Events Observed with ANITA