Nobel prize goes to mRNA COVID vaccine researchers

Researchers Katalin Kariko and Drew Weissman won the Nobel Medicine Prize on Monday for work on messenger RNA (mRNA) technology that paved the way for groundbreaking COVID-19 vaccines.

Fossil footprint discoveries and what they tell us

Footprints on a sandy surface don't usually last long: they're washed away by water, wiped out by wind or covered over by new tracks. At certain sites in southern Africa, though, some traces of animals have lasted for many ...

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