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Tech

Revving Up Green Machines

Researchers are looking into new ways to make cars run more efficiently with less impact on the environment.

Planets

Chaos Among the Planets

The screwball travels of four giant planets may have reshaped the early solar system.

Brain

Making sense of scents

Different smells light up different parts of the brain.

Health & Medicine

Nature’s medicines

Projects by young scientists show how plants and animals in nature can be a source of new medicines.

Animals

New mammals

Wildlife biologists have discovered a new type of monkey and an unusual rodent.

Health & Medicine

Keeping Bugs Away from Food

Cardboard containers coated with citronella oil keep bugs away.

Humans

An ancient childhood

Knowing what the lives of children were like long ago can help us understand how cultures and societies change.

Tech

Machine Copy

A simple robot builds a copy of itself block by block.

Animals

A Jellyfish’s Blurry View

Some types of jellyfish have great eyes that can't focus.

Space

Killers from Outer Space

A newly revised scale rates the risk that an asteroid may crash into Earth and wipe out life as we know it.

Animals

Glimpses of a Legendary Woodpecker

Long feared extinct, the ivory-billed woodpecker has been spotted in Arkansas.

Environment

Cleaning up fish farms

Although fish farms can supply lots of food, these operations may also cause pollution and hurt wild populations.