Season 23, Episode 18 Odyssey of Life: Unknown World

First Aired: November 25, 1996

Part 2 of "Odyssey of Life" explores the world of microscopic bacteria, viruses and creatures whose activities have significant impact on humans. Included: book lice, museum beetles and hair-follicle mites. Also: footage of HIV as it travels through the body.

Next On TVSee all »

Cast & Details See all »

  • Premiered: March 3, 1974
  • Rating: None
  • Premise: PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past a… (more)

Show More »

Trending TonightSee all »

Watch This

Josh Bowman and Freddie Stroma
Time After Time Stars Play Guess That Facial Hair!

Can the Time After Time stars, who were nearly unrecognizable with facial hair, recognize other actors by only seeing their facial hair?