Astronomers propose a new theory to explain Saturn's unusual rings.
Volcanologists keep wary watch on Sicily's restless peak.
A huge galactic smash-up may have formed the galaxies nearest us.
The key to defeating tuberculosis may lie in its longevity.
Use of nitrogen fertilizer is radically impacting Earth's nitrogen cycle.
Astronomers say a black hole recently formed in a nearby galaxy.
Roads connect people, but they separate animals.
Learning to read reorganizes the brain's neural networks—at any age.
Knowing how far Atlantic sturgeons roam will help protect this threatened migratory species.
A South African site yields evidence of early advancement in our species.