Speaker: Marek Kowalski, Humboldt University Berlin & DESY Zeuthen
Abstract: The existence of high energy neutrinos of cosmic origin was discovered by IceCube in 2013, opening a new window to the cosmos. Since then much has been learned about their properties, however, the astrophysical sources of the neutrinos remain unresolved so far. In this talk I will summarize the knowns and unknowns concerning IceCube's neutrinos and how advances in multi-messenger astronomy can help solve the puzzle. Plans for a next-generation IceCube detector, named IceCube-Gen2, will be presented.