A hormone-free pill, called YCT-529, that temporarily stops sperm production by blocking a vitamin A metabolite has just concluded its first safety trial in humans, getting a step closer to increasing ...

To celebrate Scientific American ’s 180th anniversary, we’re publishing a jigsaw every weekday to show off some of our most ...

In only its second year, the International Logic Olympiad is already booming as logic becomes more and more crucial in our ...

A SkyWest pilot’s last-second decision could have prevented a collision that air traffic controllers may not have foreseen ...

The Langlands program has inspired and befuddled mathematicians for more than 50 years. A major advance has now opened up new ...

Optimists have similar patterns of brain activation when they think about the future—but pessimists are all different from ...

Acknowledging the limits of one’s own knowledge could be as important a signal of expertise as credentials and confidence ...

Lauren Keating is an associate professor of organizational behavior and psychology at Emlyon Business School in France, as ...

Heat and humidity will once again smother the eastern half of the country this week, pushing the heat index to dangerous levels for tens of millions of people. In the Midwest, the humidity will be ...

Benjamin Walker is a senior lecturer in organizational behavior at Te Herenga Waka–Victoria University of Wellington in New Zealand. He studies experts and expertise, the work-identity interface, ...

To celebrate Scientific American ’s 180th anniversary, we’re publishing a jigsaw every weekday to show off some of our most ...

Weighing in at 0.6 solar mass, HOPS-315 should someday grow to become a star much like our own sun; this makes it a promising ...