Former NASA officials warn that the U.S. looks poised to lose its self-declared race to beat China to the moon ...

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

Melissa is a relatively slow-moving Category 4 major hurricane—a brutal combination that will drench some parts of Jamaica with up to 40 inches of rain ...

After a quiet summer, bird flu cases are rising again. Scientists expected the development, but what happens next is still ...

Disease-causing bacteria that have been recently discovered in the teeth of Napoleonic soldiers may have spurred the massive ...

Oxytocin is often thought of as a "love drug," and is linked with all kinds of feel-good emotions in people such as trust, empathy and generosity. Increasingly, however, scientists are finding that ...

The FDA says you should not eat, sell or serve recalled eggs. You should also clean and sanitize anything the eggs have ...

Short-period comets get close to the sun much more often than their long-period kin, and every time they do, they deplete ...

Cliff-rappelling scientists uncovered a crossbow bolt, part of a slingshot and 25 shoes in ancient vulture nesting sites ...

Wyoming’s “dinosaur mummies,” once thought to preserve fossilized flesh, are actually detailed clay molds formed by microbes ...

Less than 1 percent of clinical trials include pregnant or breastfeeding people. Experts say that needs to change ...

The research, published today in Current Biology, showed that ultramarathoners can burn an astounding 11,000 calories per day ...