There is some evidence of lightning occurring on Venus.
Notes on verification
Multiple spacecraft (Venera, Pioneer Venus, Venus Express) detected signals consistent with lightning, but other missions (Cassini, Galileo) failed to confirm it, and a 2018 review calls findings contradictory. The claim as stated (some evidence exists) is accurate, but scientific consensus on actual occurrence remains unsettled. [tier=gold indep_score=1.0 clusters=4 claim_tier=notable]
Sources
- Ashen light (wikipedia)
- https://www.nature.com/articles/279614a0 (corroboration)
- https://science.nasa.gov/missions/cassini/cassini-scientists-see-no-sign-of-lightning-on-venus/ (corroboration)
- https://progearthplanetsci.springeropen.com/articles/10.1186/s40645-018-0181-x (corroboration)
- https://www.science.org/content/article/signs-lightning-venus (corroboration)