Feature

Formaldehyde: Some Surprises at Home

Hormone Helps Ring Internal Alarm Clock

This Year, Resolve to Fidget More

Some Light on Dark Matter

Astronomy

Fossil Ape’s Grasp Gets Two Thumbs Way Up

What You See Is What You Get

Treatment Blocks Sites for Dental Bacteria

Use It, Don’t Abuse It

Life’s First Scalding Steps

Back Matter

Young Plants Prepare to See the Light