Europa is one of a handful worlds in the solar system that could potentially harbour life
Based on the findings, scientists said this CO2 was formed within Europa’s subsurface ocean and brought to the surface on a geologically recent timescale - suggesting that the moon’s subsurface ocean contains carbon, one of the essential ingredients known for the formation of life.
“We now think that we have observational evidence that the carbon we see on Europa’s surface came from the ocean. That's not a trivial thing. Carbon is a biologically essential element,” added Samantha Trumbo of Cornell University in Ithaca, New York, lead author of the second paper analysing these data.
The other study found that CO2 on Europa’s surface is sourced from within and mixed with other compounds. However, neither study could distinguish if there was a non-living or living source creating the carbon dioxide.
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