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Psychology

Pain expectations

How painful you expect something to be beforehand can affect how you actually feel when you're hurt.

Planets

An Icy Blob of Fluff

Firing a projectile into a comet has exposed an icy dirtball.

Environment

Shrinking glaciers

Most glaciers around the world appear to be getting smaller.

Animals

From Chimps to People

Although chimpanzees and people share many genes, there are key biological differences.

Animals

Copybees

Bees can learn about new food sources by spying on each other.

Tech

Roboroach and company

Cockroaches and lobsters inspire robots that navigate in darkness and track smells.

Humans

Salt and Early Civilization

Evidence from China suggests that people were making salt at least 4,000 years ago.

Animals

Who’s knocking?

Recordings of calls and drumming provide new evidence that the ivory-billed woodpecker survives.

Animals

Walktopus

Some octopuses can walk, using two of their eight arms to scoot backward.

Space

Asteroid Moons

Astronomers have spotted an asteroid with two moons.

Life

Algae motors

Single-cell algae can haul hefty loads.

Planets

A Smashing Display

A space probe slams into a comet and sends up a mighty cloud of dust.