  First evidence of high-energy astrophysical neutrino observation with the
IceCube detector from May 2010 to May 2012 is presented. Selecting for
high-energy neutrino events with vertices well contained in the detector
volume, the analysis has sensitivity starting at approximately 50 TeV, and the
highest energy events are a few PeV. A significant excess in flux is observed
above expected backgrounds from atmospheric muons and neutrinos. The sample of
28 events includes the highest energy neutrinos ever observed, and has
properties consistent in flavor, arrival direction, and energy with generic
expectations for neutrinos of extraterrestrial origin. Using the new found
astrophysical neutrinos, spatial searches of clusters are performed to look for
exact sources, marking the birth of neutirno astronomy.
