Feature

Feds Plan Battle against Aliens

Sea Change in the Arctic

Depression Proves Risky for Ill Hearts

Lab-Grown Bladders Prove a Success in Dogs

Lava Flow Isn’t Hot News

Prospects Dim for Live AIDS Vaccine

Supersonic Defects Have the Right Stuff

Bacteria under Ice: Some Don’t like It Hot

Pain, Pain, Go Away

Back Matter

South Pacific Has a Severe Case of Anemia

AAAS