IceCube is a neutrino observatory located deep in the Antarctic glacier close to the geographical South Pole. Close to a gigaton of ice has been fitted with optical sensors with the primary goal of searching for neutrinos from the still unknown sources of the highest-energy cosmic rays. Last year, IceCube observed for the first time a handful of high-energy neutrinos which must have originated outside the solar system.The discovery was named the 2013 Breakthrough of the Year by the British magazine Physics World. It is the first necessary step to achieve the dream of charting the places in the universe able to accelerate hadrons to energies over a million times higher than those at the Large Hadron Collider (LHC). The science goals of IceCube extend beyond astrophysics: IceCube is also a powerful tool for searches of dark matter and can be used to study phenomena connected to the neutrinos themselves, like neutrino oscillations. The talk will be an update on the most recent results from IceCube.