EP1 - Alien Planets EP2 - Cosmic Holes EP3 - Mysteries of the Moon EP4 - The Milky Way EP5 - Alien Moons EP6 - Dark Matter EP7 - Astrobiology EP8 - Space Travel EP9 - Supernovas EP10 - Constellations EP11 - Unexplained Mysteries EP12 - Cosmic Collisions EP13 - Colonizing Space EP14 - Nebulas EP15 - Wildest Weather in the Cosmos EP16 - Biggest Things in Space EP17 - Gravity EP18 - Cosmic Apocalypse