Science, Space and Technology News 2024
An artist’s rendition of Saturn’s moon Enceladus depicts hydrothermal activity on the seafloor and cracks in the moon’s icy crust that allow material from the watery interior to be ejected into space. New research shows that instruments destined for the next missions could find traces of a single cell in a single ice grain contained in a plume. Credit: NASA/JPL-Caltech
This image shows red streaks across the surface of Europa, the smallest of Jupiter’s four large moons. The upcoming Europa Clipper mission will send instruments to investigate this moon. New research shows that one of these instruments destined for the next mission could find traces of a single cell in a single ice grain ejected from the planetary body’s interior. Credit: NASA/JPL/Galileomission that ended in 2017 discovered parallel cracks near the south pole of Saturn’s moon Enceladus.
Results show that the instruments can detect this bacterium, or portions of it, in a single ice grain. Different molecules end up in different ice grains. The new research shows that analyzing single ice grains, where biomaterial may be concentrated, is more successful than averaging across a larger sample containing billions of individual grains.
“We here describe a plausible scenario for how bacterial cells can, in theory, be incorporated into icy material that is formed from liquid water on Enceladus or Europa and then gets emitted into space,” Klenner said.
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