Ice satellites of Solar System planets and the on-orbit radio detection of ultrahigh-energy particles

The problem of detecting nature's most energetic particles — cosmic rays and neutrinos — is reviewed. Prospects for using orbiting radio detectors for these highest-energy particles are examined. Apertures are calculated for space experiments using the Moon and similar-size ice satellites of Solar System planets as targets for the interaction of cosmic-ray particles and neutrinos. A comparative analysis shows that using the Moon target is the most promising scenario.