Feature

Some Light on Dark Matter

What You See Is What You Get

Selenium as an Antioxidant

Hubble Eyes Signs of Nearby Planets

Ancient People Sparked Die-Offs down Under

This Year, Resolve to Fidget More

Treatment Blocks Sites for Dental Bacteria

Hormone Helps Ring Internal Alarm Clock

Formaldehyde: Some Surprises at Home

Young Plants Prepare to See the Light

Fossil Ape’s Grasp Gets Two Thumbs Way Up

Life’s First Scalding Steps