The Mysterious Ocean of Enceladus
Saturn’s moon Enceladus has a secret. For some years, scientists have been convinced that there is a liquid ...
The Next Frontier in Synthetic Biology
Researchers have built something pretty weird—an artificial stingray. Ethicists and legal experts are still debating the rise of synthetic biology.
The Bison Is America’s New National Mammal
The American bison joins the bald eagle as the second national animal. What will the designation mean for its conservation status?
The Astounding Adaptations of Long-Distance Flyers
Frigate birds are truly champion fliers. The birds can fly for weeks without stopping. How do they do it?
The Nuptial Gifts of the Firefly
Fireflies, lightning bugs, glowworms: the evocative insects of summer reveal some surprising new insights into biology.
Why Do Animals Share?
Natural selection should weed out the do-gooders and leave only egoists, but animals share just the same.
Do Reminders of Death Affect Reckless Driving?
Self-driving cars are meant to eliminate reckless driving. But can anything really stop motorists from making bad choices?
Where Did the Moon Come From?
Despite years of study, it is only since the 1980s that a theory of the moon's origin has coalesced.