News

Space

Super Saturnian storm

The Cassini spacecraft captured images of massive tempest in planet’s northern hemisphere.

Life

Immune cells function beyond battle

Cells lining the intestines take cues from immune cells and gut bacteria when deciding whether self-defense or metabolism is more important.

Health & Medicine

Coffee delivers jolt deep in the brain

Caffeine strengthens electrical signals in a portion of the hippocampus, a study in rats finds.

Humans

Two feet or four, software is the same

All walking animals use the same basic nerve patterns to put one leg in front of the other(s).