Top news for December 21, 2008

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Allogeneic hematopoietic stem cell transplant - EurekAlert!

NASA’s SPHEREx Takes First Images, Preps to Study Millions of Galaxies

Eating ‘Family Style’ May Have Set the Stage for Life as We Know It

Protein That Calms Waking Hair Follicles Could Lead to Alopecia Treatment

New 'Half-Ice, Half-Fire' Phase of Matter Found Lurking in a Magnet

New warnings of a ‘Butterfly Effect’ — in reverse - EurekAlert!

Scientists Reveal the Hidden Chemistry of Air Pollution

SpaceX launches 4 people on a polar orbit never attempted before

Sols 4495-4497: Yawn, Perched, and Rollin’

Discovery Alert: Four Little Planets, One Big Step