News

Physics

Quantum pendulum trick explained

Physicists explain why an object swings faster when immersed in a special ultracold liquid.

Life

Pneumonia drugs helped evolve a superbug

As told through DNA from historical samples, a deadly bacterium reveals how it developed the ability to evade antibiotics and a vaccine.

Humans

Hints of earlier human exit from Africa

New finds suggest surprisingly early migrations by Homo sapiens out of Africa through an oasis-studded Arabia.

Earth

Dispersants persisted after BP spill

Chemicals used to break up oil remained in the Gulf’s depths months after being released, an analysis shows.