News
- Chemistry
Tiny molecules walk the track
Researchers design synthetic “walking” molecules that may one day haul cargo in artificial micromachines.
- Paleontology
Sail-backed dinos had semiaquatic lifestyle
Isotopic analyses of fossils suggest the carnivores had crocodile-like habits.
- Earth
Sea levels erratic during latest ice age
Mineral crusts deposited 81,000 years ago in a Mediterranean island’s caves suggest an abrupt jump in sea level.
- Health & Medicine
Mutations may underlie some stuttering
Defects in three genes governing basic cell metabolism are found in a portion of cases, researchers find.
- Space
Bouncing sands explain Mars’ rippled surface
A new study finds that dunes and ridges can form without much wind on the Red Planet.
