Something’s off.Venus’s yellowish lower haze has long lacked an explanation. According to the report, a microphysical model suggests that dust left by meteorites burning in the atmosphere can collect sulfuric acid, eventually leaving bare particles behind as haze.
The proposed mechanism also links the haze to an old ultraviolet-absorption mystery: iron sulfate associated with the particles reportedly matches the haze’s properties. Rather than volcanic ash or surface dust, the model points to a continual rain of cosmic material.
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