Category: Exobiology
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Fresh water and key conditions for life appeared on Earth half a billion years earlier than we thought
A new study published in Nature Geoscience provides the first evidence of fresh water and dry land on Earth by 4 billion years ago – pushing back the conditions for life to have existed on our planet hundreds of millions of years. More here.
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Instrument Ready to Discover New Planets
As the NEID spectrometer on Kitt Peak begins its scientific mission of discovering Earth-like planets elsewhere in the Milky Way, a University of Arizona team is providing the software hub that allows the instrument to probe stars for telltale signs of invisible planets. More here https://news.arizona.edu/story/instrument-ready-discover-new-planets
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Methane in the plumes of Saturn’s moon Enceladus: Possible signs of life?
An unknown methane-producing process is likely at work in the hidden ocean beneath the icy shell of Saturn’s moon Enceladus, suggests a new study published in Nature Astronomy by scientists at the University of Arizona and Paris Sciences & Lettres University. Giant water plumes erupting from Enceladus have long fascinated scientists and the public alike,…