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"Have any studies investigated the changes in cellular biology under microgravity? "
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Life's Boiling Point
Some proteins can work above the boiling point of water, but these vital biomolecules may have a harder time evolving at high temperature. A new project is searching for the maximum temperature for protein-based life.
Source: [Astrobiology Magazine]
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Nikola said:
Most of these proteins are isolated from achaea bacteria (the so called extremophiles). They are very interesting group of bacteria with specific and unique metabolic characteristics.