Dark Matters21 Grams, Missing Cosmonauts, Sound of Death
Directed by Amy FosterTV-PG
S1 • E5 Sep 28, 2011 43m7.7
"21 Grams" looks at the work of Dr. Duncan MacDougall who weighed dying people in order to establish the existence of the soul. "Missing Cosmonauts" examines reports that several cosmonauts died on missions during the early days of space exploration. "Sound of Death" looks at the work of scientists who were experimenting with ultra-low-frequency sound and a sonic gun.
