Climate archives under the magnifying glass

The fossil remains of algae continuously accumulate in marine sediments, and these can be used to reconstruct past oceanic conditions. Molecular fossils, called lipid biomarkers, are of particular importance for this. They ...

Finding microbes rarer than a ticket to the moon

You are more likely to take a trip to the Moon than to see a microbe called Legendrea loyezae under a microscope. Nasa's Apollo program has sent a total of 24 people to the Moon between 1968 and 1972. Only four people (including ...

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