Scientific American Magazine

Many human species have inhabited Earth. But ours is the only one that colonized the entire planet. A new hypothesis explains why

Two rival teams of astronomers are racing to capture unprecedented images of giant planets around other stars. What they find could change the future of planet hunting

Jackhammers, concerts and other common noisemakers may cause irreparable damage to our ears in unexpected ways

Too often school assessments heighten anxiety and hinder learning. New research shows how to reverse the trend

The world's most watched test, the PISA, ventures into a new domain: instant messaging

Why the Next Generation Science Standards will succeed

Searching for California's missing moisture

What is the information storage capacity of Earth, and how full is it today? The answer tells us surprising things about the growth of order in the universe

Trees can't walk to a better place as climate worsens. So scientists are relocating helpful genes instead

Five key SA articles from the past four years that help explain the connection between extreme weather and climate