Summary: 40,000 planets could be home to aliens, 1709: The year that Europe froze, Apple juice could guard against Alzheimer's, Japan sewage yields more gold than top mine, Early Whales Gave Birth On Land, Fossil Find Reveals, Early Whales Gave Birth On Land, Fossil Find Reveals, Mummies found in newly discovered tomb in Egypt, Trials for revolutionary stem cell surgery in UK 'within a year', Was There Once a Mars-Earth Microbe Shuttle?, Why Sleep Is Needed To Form Memories
