Top news for December 21, 2008

Gene Signature Discovered for Plaque-Eating Microglia in Alzheimer’s Disease

Biodiversity devastation: Human-driven decline requires millions of years of recovery

Nanoparticles: The complex rhythm of chemistry

Researchers found that the tardigrades shot from a gun at speeds up to 825 meters per second could be resuscitated. Those experiencing higher-speed impacts were torn apart and did not survive. This suggests tardigrades would likely not survive an impact if they traveled across space on an asteroid.

Itch insight: Skin itch mechanisms differ on hairless versus hairy skin

Water treatment: Removing hormones with sunlight

Brain's memory center stays active during 'infantile amnesia'

Pandemic paleo: A wayward skull, at-home fossil analyses, a first for Antarctic amphibians

Pennsylvania, Texas Students to Hear from Astronauts on Space Station

NASA Invites Media to Launch of Boeing’s Orbital Flight Test-2