Oldest proteins yet recovered from 18-million-year-old teeth

Protein fragments managed to persist in the harsh conditions of Kenya’s Rift Valley Ellen Miller The fossilised teeth of 18-million-year-old mammals in Kenya have yielded the oldest protein fragments ever recovered, extending the record age for ancient proteins fivefold. Daniel Green at Harvard University, in collaboration with Kenyan scientists, found a variety of fossilised remains,…

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Scientists just recreated a 1938 experiment that could rewrite fusion history

A Los Alamos collaboration has replicated an important but largely forgotten physics experiment: the first deuterium-tritium (DT) fusion observation. As described in Physical Review C, the reworking of the previously unheralded experiment confirmed the role of University of Michigan physicist Arthur Ruhlig, whose 1938 experiment and observation of deuterium-tritium fusion likely planted the seed for…

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Colossal’s plans to “de-extinct” the giant moa are still impossible

An artist’s impression of the moa, one of the largest extinct birds Christopher Klee/Colossal Biosciences Colossal Biosciences has announced plans to “de-extinct” the New Zealand moa, one of the world’s largest and most iconic extinct birds, but critics say the company’s goals remain scientifically impossible. The moa was the only known completely wingless bird, lacking…

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