High-Energy Neutrino Astronomy: where do we stand, where do we go?

Understand

With the identification of a diffuse flux of astrophysical ("cosmic") neutrinos in the TeV-PeV energy range, IceCube has opened a new window to the Universe.

• However, the corresponding cosmic landscape is still uncharted: so far, the observed flux does not show any clear association with known source classes.
• In the present talk, I sketch the way from Baikal-NT200 to IceCube and summarize IceCube's recent astrophysics results.
• Finally, I describe the present projects to build even larger detectors: GVD in Lake Baikal, KM3NeT in the Mediterranean Sea and IceCube-Gen2 at the South Pole.