Nat Geo's Known Universe explored some of the most fascinating mysteries of science. What is the likelihood of life on other planets? Could an asteroid wipe out the human race? What can volcanic activity on Jupiter tell us about deadly weather on Earth?

Each hour long episode dissects a specific topic using time-lapse sequences, slow-motion footage and computer animations that bring to life the latest research. And prominent experts guide viewers through the details and concepts to shed light on these astonishing aspects of our universe. (2009-2011)