SEVERAL explanations1–4 of the excess 129Xe and 131Xe in terrestrial tellurium ores have been proposed. Takagi et al.2 pointed out that the observed 129Xe/131Xe ratios are well explained by muon interactions on tellurium isotopes. The intense muon flux necessary for the production of the observed amount of the xenon isotopes was considered to have been produced through the resonant scattering of high energy electron antineutrinos emitted by the explosion of our galaxy. Since that paper there has been some further analytical data on the isotopic composition of xenon in tellurides4, which essentially seem to be consistent with the explosion mechanism.