News

Life

Feces study gets the poop on gorillas’ diet

Chemical traces in animals’ droppings reflect shifts in recent food consumption.

Humans

Lines in the sand may have been made for walking

The ancient Nazca culture’s celebrated desert drawings include a labyrinth meant to be strolled, not seen.

Planetary Science

Violent past revealed by map of moon’s interior

A gravity survey by twin orbiters reveals how much the lunar surface was pummeled by meteorite impacts early in its history.

Health & Medicine

Drug breaks up Alzheimer’s-like deposits in mice

Recent failed trials of a similar approach in humans fuel skepticism that patients will benefit.