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Legendary bacterial evolution experiment enters new era

Legendary bacterial evolution experiment enters new era

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E. coli cells used in the long-term evolution experiment (LTEE) on an agar plate.Credit: Jeffrey Barrick On 24 February 1988, evolutionary biologist Richard Lenski filled 12 flasks with sugary growth medium and seeded each with Escherichia coli bacteria. For the past 34 years, Lenski, at Michigan State University in East Lansing, and his colleagues have …

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Black hole science enters its golden age

Black hole science enters its golden age

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For centuries, black holes were merely theoretically speculative ideas. This tiny sliver of the GOODS-N deep field, imaged with many observatories including Hubble, Spitzer, Chandra, XMM-Newton, Herschel, the VLT and more, contains a seemingly unremarkable red dot. That object, a quasar-galaxy hybrid from just 730 million years after the Big Bang, may be key to …

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