The Royal Swedish Academy of Sciences announced this Tuesday that the winner of this year's Nobel Prize in Physics is the researcher from the University of Wisconsin-Madison, Francis Halzen. Born in 1944 in Belgium, Halzen has been awarded for laying the foundations of a radically new type of astronomy: neutrino astronomy. His contributions have been decisive in creating the IceCube Neutrino Observatory in Antarctica and in discovering high-energy neutrinos of astrophysical origin, which allows researchers from all over the world to learn more about the cosmos and its characteristics, some still unknown to humans.