Hey, ESA - can Juice get there any faster?
. The find points to carbon dioxide not arriving from external sources like meteorites, but rather being raised to the surface of Europa from its internal ocean on a relatively recent timescale, geologically speaking.
The high levels of CO2 were found in a region of Titan known as Tara Regio, which is a young region of resurfaced"chaos terrain" that's caused by some sort of disturbance causing"an exchange of material" between the ocean and frozen surface, NASAPrevious observations from the Hubble Space Telescope show evidence for ocean-derived salt in Tara Regio," said Cornell University's Samantha Trumbo, lead author on one of the two papers.
CO2 on the surface of Europa doesn't last that long, another sign in favor of it having been ejected to the surface in recent geologic history since most of it is confined to Terra Regio, they argue.of water vapor erupting from beneath Europa's surface, but found no evidence of plume activity - a fact that still doesn't rule it out entirely, the researchers noted.
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