Photochemical processes on Venus can skew data of probes

New research predicts an excess of certain isotopes of sulphur above the cloudtops of Venus. The research has implications for future probes, that may detect unexpected isotope ratios.

New Delhi: Planetary Science Institute scientist James Lyons has published a sole-author paper in the journal Atmosphere, modeling the behaviour of sulphur isotopes in the Venusian atmosphere. The study focuses on four sulphur isotopes found on Venus in sulphur dioxide gas, and predicts a strong fractionation from a photochemical (chemistry influenced by light) called self-shielding. Sulphur dioxide absorbs ultraviolet light from the Sun and breaks down into........

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