  AMANDA (Antarctic Muon And Neutrino Detector Array) is a neutrino telescope
built under the southern polar icecap and its scope is to explore the
possibility to detect high energy cosmic neutrinos. This should generate
insight into the powerful celestial objects where acceleration mechanisms can
bring up to $10^{20}$ eV. We describe the achievements and results from the
AMANDA-B10 prototype and the preliminary results from the current AMANDA-II
detector which show dramatic increase in sensitivity.
