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Observations

Observations

Opinion, arguments & analyses from guest experts and from the editors of Scientific American

Pluto Redux

The faraway world’s demotion more than a decade ago opened a celestial can of worms

July 5, 2019 — Chris Impey

Nobel Laureate Recalls Zoo Inspiration

As a boy, George P. Smith was fascinated by reptiles. In this interview with Scientific American , Smith talks about how his scientific interest changed from reptiles to molecular biology—and led to his Nobel Prize-winning work using evolutionary principles to develop systems that make it possible to create entirely new kinds of pharmaceuticals...

July 2, 2019

Her Nobel Research Outshines Her Star Turn

Nobel Laureate Frances H. Arnold talks to Scientific American editor-in-chief Mariette DiChristina about her work, which takes advantage of the evolution algorithm to make entirely new enzymes that can perform useful chemistry...

July 2, 2019

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Scientific American Unlimited