Europa Plume Claims Doubted: Hydrogen Exosphere, Not Local Water Vapor

1 min read
Source: Gizmodo
Europa Plume Claims Doubted: Hydrogen Exosphere, Not Local Water Vapor
Photo: Gizmodo
TL;DR

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.

Share this article

Want the full story? Read the original reporting

Read on Gizmodo