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Detection of H₃⁺ on Jupiter

Atreya, S. K.; Drossart, P.; Clarke, J. T. +9 more

SINCE their detection in the high latitudes of Jupiter, first by the Voyager Ultraviolet Spectrometer (UVS) experiment^1,2, then by the International Ultraviolet Explorer (IDE) satellite³, the auroral particle precipitations have been associated with various phenomena in the jovian environment. In the magnetosphere, the H^…

Deuterium content of the Venus atmosphere

Bertaux, J. -L.; Clarke, J. T.

THERE is no liquid water on Venus. The water vapour in its atmosphere would, if condensed, form a layer only 20 cm deep which means, in contrast to the 3-km-deep oceans that cover its sister planet Earth, that Venus is very dry indeed. It is not known with certainty whether Venus has lacked water since its formation, or if water once present has b…