Feature

A Sign of Healing Appears in Stratosphere

Back Matter

The 2-Million-Year-Old Man Speaks

Chromosomes Show Plants’ Secret Complexity

Imagine That: Animal Magnetism Exposed

Messy Pilgrims Blamed for Puzzling Fossils

Weights Make Haste: Lighter Linger

Kids’ ADHD Care Gets a Wake-up Call

Danish Astronomer Argues for a Changing Cosmos

Notes from the Authors

With New Vaccine, Scientist Prevents Rabies in Boys

Polar Lander’s Silence Deals NASA a Setback