Scientists identify new spinosaurid, Moderna flu shot back on track, universal inhaled vaccine shows promise

Kendra Pierre-Louis: For Scientific American’s Science Quickly, I’m Kendra Pierre-Louis, in for Rachel Feltman. You’re listening to our weekly science news roundup. Let’s start off with a vaccine 180. In a sudden turn of events last Wednesday the U.S. Food and Drug Administration agreed to review Moderna’s new mRNA flu vaccine, according to the company….

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This mathematician proved the random walk theorem to clear his name as a lurker

More than 100 years ago Hungarian-born mathematician George Pólya found himself trapped in a loop of social awkwardness. A professor at the Swiss Federal Institute of Technology Zurich, he enjoyed solitary strolls through the woods outside the city. During one of these rambles, he walked by one of his students and the student’s fiancée. Then,…

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Readers respond to the November 2025 issue

LIFE’S POSSIBILITIES In “Life’s Big Bangs,” Asher Elbein reports on geochemist Abderrazak El Albani’s controversial argument that complex life emerged much earlier than thought and possibly did so multiple times, based on evidence from rock layers more than two billion years old. As David M. Ewalt kindly points out in “It’s Good to Be Wrong….

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