Europa Plume Claims Doubted: Hydrogen Exosphere, Not Local Water Vapor
TL;DR Summary
A new reanalysis of Hubble data reduces the 2014 claim of 200-km-high water-vapor plumes on Europa from 99.9% confidence to under 90%, suggesting the earlier signal may be statistical noise; meanwhile there’s evidence for a persistent hydrogen exosphere but no localized water vapor. Future missions like Europa Clipper and JUICE will help settle the question.
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- New SwRI Research Challenges Evidence for Europa’s Vapor Plumes Bioengineer.org
- Reanalyzed Hubble data challenges Europa plume claims Labroots
- The case for water plumes on Europa just got much harder to make The Brighter Side of News
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