Scientific American.com

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

A comet’s brightness depends on how it’s made, how and when we see it, and even a bit of unpredictable luck

Despite the widespread use of medication during pregnancy, a lack of clinical research leaves patients and doctors navigating treatment with dangerously few data.

Melissa is a Category 5 major hurricane and moving relatively slow—a brutal combination that will drench some parts of Jamaica with up to 40 inches of rain

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

Forget fake profile pics on dating apps—AI is now doing the talking, and we can’t tell the difference

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

Should you take vitamin C or zinc when you are sick with a common cold or influenza? Immunologist Zachary Rubin explains which at-home remedies actually help.

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

For microscopic worms, physical laws we seldom notice take on life-or-death importance