News

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.

Space

LHC sees odd behavior in superhot particle soup

Coordinated motion in debris from lead-proton collisions may yield clues about quark-gluon plasma.