A more recent hypothesis proposes that ashen light on Venus is a form of transient aurorae or airglow.
Notes on verification
Confirmed by Wikipedia, a peer-reviewed 1969 paper (Hansen & Hoff), an independent science blog, and a UCLA planetary science page, all describing the airglow/auroral hypothesis for Venus's ashen light. [tier=gold indep_score=0.95 clusters=3 claim_tier=notable]
Sources
- Ashen light (wikipedia)
- https://explainingscience.org/2025/11/15/the-mystery-of-the-ashen-light-of-venus/ (corroboration)
- http://www-ssc.igpp.ucla.edu/personnel/russell/papers/ashen/ (corroboration)
- https://www.sciencedirect.com/science/article/abs/pii/0032063369900014 (corroboration)