How our bodies coddle cancer

Tumors resist chemotherapy with help from a surprising source: nearby normal cells. Researchers are developing workarounds.

How the moon landings changed our view of the solar system

Lunar samples hinted at a barrage of debris pummelling planets billions of years ago. Fifty years…

Mucus: the body’s unsung hero

The slimy stuff has a surprisingly wide array of beneficial biological functions

Tiny, living stones of the sea

How limestone-covered algae sway global climate — and how their fate may shift as the oceans…

The hidden strengths of freshwater mussels

The humble bivalves can clean polluted water and bump up diversity — but in dammed rivers…

How 3-D printing could help shape surgery

Technology is enabling increasingly lifelike models of organs to help doctors practice operations.

First, do harm

Studies that deliberately infect people with diseases are on the rise. They promise speedier vaccine development,…

Life’s a blur — but we don’t see it that way

Our brains manage to construct stable images even as our eyes keep darting around. Here’s what…

Plasmonics brings the molecular world into sharper focus

People have been using metals to manipulate light for centuries. Now researchers are using it to…

Putting the squeeze on glaucoma

The eye disease causes millions to go blind. New treatments aimed at protecting nerve cells —…