S3.E1 ∙ Surviving Outer Space Wed, May 04, 2011 Known Universe examines how man will overcome the dangers in space where just surviving is a tense, daily challenge. 7 /10
S3.E2 ∙ Treasure Hunt Wed, May 11, 2011 From asteroids containing more metal than ever mined on Earth to planets that may have liquid diamond oceans, man's treasure hunts move into Space and may change our very definition of treasure. 7 /10
S3.E3 ∙ Most Powerful Stars Wed, May 18, 2011 Known Universe explores the secrets of the some of the most powerful stars in the universe. 6.8 /10
S3.E4 ∙ Extreme Space Tech Wed, May 25, 2011 Known Universe examines how science is rethinking the physics of the universe to transform everyday items and technologies for use in space. 5.7 /10
S3.E5 ∙ Biggest Cosmic Blasts Wed, Jun 01, 2011 National Geographic examines volcanic eruptions and their astonishing effects on humans and entire galaxies. 6.2 /10
S3.E6 ∙ Construction Zone Wed, Jun 08, 2011 Known Universe reveals the tools, techniques and materials we'll need to create homes and more amongst the stars. 6.4 /10
S3.E7 ∙ Escaping Earth Wed, Jun 15, 2011 Engineering in space represents the future of human civilization but also poses some of our greatest technical difficulties. 6.8 /10
S3.E8 ∙ End of the World Wed, Jun 22, 2011 The world didn't end on 5/21/11 as some feared, but someday it will, and not just on Earth. 6.7 /10
