The tau neutrino, one type of particularly energetic neutrino, has eluded IceCube's detectors on the South Pole – until now.

IceCube, one such experiment, documented an especially rare type of particularly ... an electron neutrino collision never decays, and it bangs into every particle in the ice it comes near.

IceCube sits on tons of clear ice, allowing scientists to make out neutrino interactions.

IceCube, one such experiment, documented an especially rare type of particularly ... an electron neutrino collision never decays, and it bangs into every particle in the ice it comes near.

IceCube, one such experiment, documented an especially rare type of particularly ... an electron neutrino collision never decays, and it bangs into every particle in the ice it comes near.

IceCube, one such experiment, documented an especially rare type of particularly ... an electron neutrino collision never decays, and it bangs into every particle in the ice it comes near.

IceCube, one such experiment, documented an especially rare type of particularly ... an electron neutrino collision never decays, and it bangs into every particle in the ice it comes near.

IceCube, one such experiment, documented an especially rare type of particularly ... an electron neutrino collision never decays, and it bangs into every particle in the ice it comes near.

IceCube, one such experiment, documented an especially rare type of particularly ... an electron neutrino collision never decays, and it bangs into every particle in the ice it comes near.

IceCube, one such experiment, documented an especially rare type of particularly ... an electron neutrino collision never decays, and it bangs into every particle in the ice it comes near.