The same scientists who reported water erupting from Europa in 2014 have now reanalysed 14 years of Hubble data and cut their confidence from 99.9% to below 90%. The signal may have been statistical noise, leaving Europa’s famous geysers physically plausible—but never conclusively observed, and never proven to connect with the ocean below.
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The same scientists who reported water erupting from Europa in 2014 have now reanalysed 14 years of Hubble data and cut their confidence from 99.9% to below 90%. The signal may have been statistical noise, leaving Europa’s famous geysers physically plausible—but never conclusively observed, and never proven to connect with the ocean below.

Europa’s water plumes became one of planetary science’s most memorable images without ever becoming a secure photograph. Illustrations…