Nova scienceNow - S05E01 - 20080625 - [HDTV][djinniae].avi

Scientists try to prove the existence of dark matter inside of an abandoned cave. An experiment which have helped mice with Alzheimer's get their memories restored, and may soon help human patients. The profile of Hany Farid, a Dartmouth professor who has created a computer program which can test the authenticity of a photograph. And lastly, a comical song in honor of aristocratic British scientist Francis Galton.