NASA shows off image of U.S. military's abandoned "city under the ice"
Honolulu hopes to identify long-unclaimed bodies with advanced DNA testing
Dishing up space food
Emperor penguin found on Australian beach released at sea after 20 days of care
Iceland volcano flares marking region's 7th eruption in one year
How pine cones collection helps renew Oregon forests after wildfires
Giraffes need endangered species protection, U.S. officials say
Carcass of massive endangered whale washes ashore in Alaska
