Observation of UHE Neutrinos from Outer Space
  The interaction of UHE neutrinos can be observed from outer space. The advantage of the proposed method is that the Earth can be used as an energy filter as well as a target. We sketch the potentials of these observations in searching for particle physics beyond the Standard Model of elementary particle interactions as well as observations of astronomical objects such as active galactic nuclei. 
G. Domokos and S. Kovesi-Domokos (Department of Physics and Astronomy,   The Johns Hopkins University)