Icecube and the discovery of high-energy cosmic neutrinos

The IceCube Neutrino Observatory was constructed at the Amundsen-Scott South Pole Station in Antarctica. Its thousands of sensors are distributed over a cubic kilometre under the Antarctic ice. In this lecture on the IceCube project, Principal Investigator Francis Halzen explains his physicist's view of astronomy and the relevance of cosmic neutrinos for understanding the origin of the highest energy cosmic rays, concluding with a view of what "IceCube science" holds for the future.