Scientific American Magazine

A surprising connection between cosmology and quantum mechanics could unveil the secrets of space and time

Two decades of research confirm that weight loss is about burning more calories than you consume—but what you eat is more important than how much you exercise

Ocean acidification may alter the behaviors of underwater creatures in disastrous ways

Newly discovered genetic mutations are providing clues about how this disorder relentlessly destroys motor neurons and robs people of their mobility. The findings may lead to drug therapies for a condition that has long defied treatment 

How a naturalist’s observations in the wilds of British Columbia inspired a scientist to discover hidden symbioses—overturning 150 years of accepted scientific wisdom

Artificial intelligence has staged a revival by starting to incorporate what we know about how children learn

They ruled the icy outpost for hundreds of years before their colonies collapsed. New findings are elucidating their puzzling decline