The new germ theory: Infections play a role in many, many diseases—in ways we're just beginning to understand.
Should morals, as well as religion, dictate what observant Jews can eat? After years of debate, some Orthodox rabbis say yes.
The danger of uploading one’s consciousness to a computer without a suicide switch
Scientists share the gross, scary, and often hilarious reality of doing experiments in the wild.
A clever experiment reveals how fake traffic noise drives songbirds out of forests and harms the ones that stay behind.
The fish use an enzyme to turn their eyes into night-vision goggles, but that's nothing compared to what bullfrogs do.
Do you feel something less strongly if you don’t have a word for it?
Astronauts get burns, cuts, and scrapes too.