Speaker
Description
The concept of using the neutrino as an astronomical messenger is as old as the neutrino itself, and the challenge to open this new window on the high-energy universe has been technological in nature. We will describe how the IceCube Neutrino Observatory transformed a cubic kilometer of natural ice at the geographic South Pole into a neutrino telescope as well as discuss the technologies that have pioneered the deployment of similar instrumentation in deep lakes and ocean waters. We will highlight some of the main results of neutrino astronomy, including the discovery of a diffuse flux of high-energy neutrinos reaching us from the cosmos, the observation of the first extragalactic high-energy neutrino sources, and the discovery that our own Galaxy shines in neutrinos. We will also describe the unexpected observation of a neutrino event of 220,000 TeV energy.
