The immune system's cells work hard to fight off infections. But new research is uncovering their important role in cognition, and a study published online May 3 in The Journal of Experimental Medicine reveals how the immune system's T cells, which aren't present in the brain, can impact learning and memory...
Researchers at Henry Ford Hospital in Detroit are studying injury-related and other information gathered electronically from last year's Detroit Free Press Marathon in preparation for this year's race in October...
Charles Darwin's studies of heredity, adaptation and evolution included many experiments into the effects of crossbreeding and inbreeding in both plants and animals.
A tony social club in midtown Manhattan is not the place one might expect to find a verbal sparring match between famous physicists. But that was the case April 23 at the Harmonie Club, when Alan Guth and David Gross had a feisty off-the-cuff debate about Guth's model for the dawn of the universe...
The Deepwater Horizon explosion and oil spill keeps getting worse—now gushing more than 200,000 gallons per day, according to NOAA estimates—five times more than original estimates and more than BP's absolute worst case scenario in disaster plans filed with the government...
This past weekend, the renowned astrophysicist Stephen Hawking joined what seems to be a growing chorus of cautious naysayers—or nervous nellies?—when it comes to possible contact with intelligent aliens from other worlds...
U.S. Secretary of the Interior Ken Salazar announced a federal blessing for the controversial Cape Wind project today—clearing a path for mammoth wind turbines to be built offshore of the Massachusetts vacation destination, the first such offshore wind farm in the U.S...
A rare fossil find of two young feathered theropods has revealed that these animals sprouted a much wider range of plumage as they matured than contemporary birds do.
HPV screening might trump Pap tests in detecting cervical cancer, but false positives remain a concern
The Pap test has been enormously successful at reducing cervical cancer deaths, but it can miss early signs of malignancy, allowing undetected cases to become invasive.
The last time I slammed into a wall, it hurt. I'm not too fond of falling off three-story buildings, either. The laws of physics can be so unforgiving.
STAFFBehind the scenes at Scientific AmericanRead
Anecdotes from the Archive
Anthropology in Practice
Exploring the human condition.Read
Insights into intelligence, creativity, personality, and well-beingRead
Everything you always wanted to know about raising science-literate kidsRead
Critical views of science in the newsRead
Dark Star Diaries
Explore the science behind the dog in your bedRead
News and research about endangered species from around the worldRead
Frontiers for Young Minds
Science by and for kids ages 8-15Read
Commentary invited by editors of Scientific AmericanRead
Climate science in a changing worldRead
Illusions, Delusions, and Everyday DeceptionsRead
Discussion and news about planets, exoplanets, and astrobiologyRead
Opinion, arguments & analyses from guest experts and from the editors of Scientific AmericanRead
Roots of Unity
Mathematics: learning it, doing it, celebrating it.Read
Adventures in the good science of rock-breaking.Read
STAFFIllustrating science since 1845Read
STAFFA science blog, sans blagueRead
The Artful Amoeba
A Blog About the Weird Wonderfulness of Life on EarthRead
Exploring and celebrating diversity in science.Read