| | | 21 Space Travel—A Reality Check.m4a | 7.38 MB |
| | | 02 Bang! A Universe Built for Life.m4a | 6.58 MB |
| | | 03 A Star Is Born—Forming the Solar System.m4a | 6.93 MB |
| | | 04 The Early Earth and Its Moon.m4a | 7.02 MB |
| | | 05 Impacts—Bringers of Death … or Life.m4a | 6.56 MB |
| | | 06 Evidence of the First Life on Earth.m4a | 7.08 MB |
| | | 07 Common Themes for All Life on Earth.m4a | 6.87 MB |
| | | 08 Origin of Terrestrial Life.m4a | 6.97 MB |
| | | 09 Astrobiology—Life beyond Earth.m4a | 6.11 MB |
| | | 10 Has Mars Always Been Dead.m4a | 6.52 MB |
| | | 11 Evidence for Fossilized Life from Mars.m4a | 6.44 MB |
| | | 12 Could Life Ever Have Existed on Venus.m4a | 7.16 MB |
| | | 13 Liquid Assets—The Moons of Jupiter.m4a | 7.04 MB |
| | | 14 Liquid on Titan and Enceladus.m4a | 7.26 MB |
| | | 15 Discovery of Extrasolar Planets.m4a | 6.63 MB |
| | | 16 The Kepler Spacecraft's Planets.m4a | 6.91 MB |
| | | 17 A Tour of Exotic Alien Solar Systems.m4a | 7.16 MB |
| | | 18 Extraterrestrial Intelligent Life.m4a | 6.54 MB |
| | | 19 SETI—The Search for Intelligent Life.m4a | 6.96 MB |
| | | 20 The Fermi Paradox—Where Is Everyone.m4a | 7.15 MB |
| | | 01 Is There Life Elsewhere in Our Universe.m4a | 6.35 MB |
| | | 22 Terraforming a Planet.m4a | 6.89 MB |
| | | 23 The Future of Terrestrial Life.m4a | 7.33 MB |
| | | 24 The Search for Another Earth.m4a | 7.36 MB |
