Abstract: The stability of light gases in various hypothetical Titan atmospheres is examined. Only tiny amounts are free of blowoff unless the mean mass is greater than 4 atomic units. In a mixture of H2 (or He) with a heavier gas, ...

Abstract: A cross correlation (by the superposed-epoch method) has been carried out between sodium abundance, measured in twilight at Saskatoon, and stratospheric warmings, observed in temperature data at Churchill and Alert. A ...

Abstract: No abstract available.

Abstract: High-dispersion photoelectric spectra have been taken of four oxygen A band lines. Synthetic spectra have been calculated, and ratios of the Martian spectra with the synthetic spectra have been taken to enhance any possible ...