News

Physics

Laser builds mirror by pushing beads together

The light technique may one day be used to build giant telescopes in space.

Animals

Sloths, moths, algae may live in three-way benefit pact

Insects and green slime may justify the slow mammal’s risky descent from trees.

Life

Pigment pas de deux puts stripes on zebrafish

Interactions between color-producing cells generate patterns on fish fins.

Cosmology

Filament of cosmic web set aglow

Astronomers say they have glimpsed a brightly lit strand of the cosmic web, the universe’s underlying structure

Neuroscience

Thinking hard weighs heavy on the brain

A balance measures the tiny changes in force due to blood flow behind a person's thoughts.