Scientific American - September 2025 by Springer Nature America, Inc. instant download

Scientific American - September 2025 by Springer Nature America, Inc. instant download

PUBLIC HEALTH
PEANUT PROOF Remarkable new treatments can free millions
of kids and adults from the deadly threat of peanut allergy, tackling one of our fastest-growing medical problems. BY MARYN MCKENNA
UPENDED What happens when foundational assumptions in science get put to the test?
RESEARCH IN REVERSE When scientists make sharp 180-degree turns in their thinking, it is often for one of two particular reasons. BY CHARLES C. MANN
NERVES DO REGENERATE Neurons, once thought to be irreparable, can grow anew—even in the brain. BY DIANA KWON
PLASTIC WAS SUPPOSED TO BE SUSTAINABLE Synthetic polymers became one of our biggest environmental crises instead. BY JEN SCHWARTZ
THE COSMOS REVISED The universe has a habit of disproving “unassailable” facts. BY RICHARD PANEK
RNA, NOT DNA, IS THE KEY TO LIFE DNA holds our genetic blueprints, but its cousin, RNA, conducts our daily lives. BY PHILIP BALL
WE PROBABLY AREN’T ALONE The search for advanced life beyond Earth
has periodically been turned upside down. BY SARAH SCOLES
HUMANS ARE NOT SO SPECIAL AFTER ALL Whales mourn, magpies exhibit self-awareness, and Venus flytraps make memories. BY KATE WONG
A PLANET REVEALED The Juno spacecraft has rewritten the story of Jupiter, the solar system’s undisputed heavyweight. BY ROBIN GEORGE ANDREWS
NEUROSCIENCE
BRAIN WASHING Cleaning waste from the brain is an essential function of sleep—and it could help ward off dementia. BY LYDIA DENWORTH