• S1.E0 ∙ International Space Station - 2005-03-28
• S1.E1 ∙ Pilot
• S1.E2 ∙ Shadow Deathstar
• S1.E3 ∙ Alien Death Ray
• S1.E4 ∙ Black Knight Rises
• S1.E5 ∙ Interstellar Gold Rush
• S1.E6 ∙ Ghosts on the Moon
• S1.E7 ∙ Mystery Space Squid
• S1.E8 ∙ U.S. UFO & The Saturn Mega Hex
• S1.E9 ∙ The Aristarchus Enigma & Martian Space Station

• S2.E1 ∙ Life in Hell
• S2.E2 ∙ Top Secret Terror
• S2.E3 ∙ Hammer of Thor
• S2.E4 ∙ Spacewalk of Doom
• S2.E5 ∙ Did We Nuke Jupiter?
• S2.E6 ∙ Nazis on the Moon
• S2.E7 ∙ Lethal Weapons
• S2.E8 ∙ Revenge of the Fireflies

• S3.E1 ∙ Pluto Under Pressure
• S3.E2 ∙ Return of the Moon Bugs
• S3.E3 ∙ Rise of the Ice Creatures
• S3.E4 ∙ Ghosts on a Comet
• S3.E5 ∙ The Moon That Disappeared
• S3.E6 ∙ Curse of the Red Planet
• S3.E7 ∙ Red Storm Rising
• S3.E8 ∙ Attack of the Thunderballs
• S3.E9 ∙ Space's Deadliest Moments
• S3.E10 ∙ The Moon's Greatest Mystery's
• S3.E11 ∙ Space Station of Doom
• S3.E12 ∙ When the Universe Attacks
• S3.E13 ∙ Mars's Strangest Secrets
• S3.E14 ∙ Horror in the Cosmos

• S4.E1 ∙ Pluto's Stranger Things
• S4.E2 ∙ Rise of the Planet Killer
• S4.E3 ∙ A President's Close Encounter
• S4.E4 ∙ The Earth Next Door
• S4.E5 ∙ Curse of the Full Moon
• S4.E6 ∙ Did Earth Have Two Moons?
• S4.E7 ∙ Mystery of the Invisible Planet
• S4.E8 ∙ Mar's Deepest Secret

• S5.E0 ∙ Moon Mystery Special
• S5.E1 ∙ JFK UFO Conspiracy
• S5.E2 ∙ Curse of the Gas Giant
• S5.E3 ∙ The Sun's Evil Twin
• S5.E4 ∙ Secret Aliens
• S5.E5 ∙ Stonehenge on Mars
• S5.E6 ∙ CIA's Secret Revenge
• S5.E7 ∙ The Moon's Strange Secret
• S5.E8 ∙ Saturn's Death Star
• S5.E9 ∙ Rise of the Aliens
• S5.E19 ∙ Conspiracy in the Cosmos

• S6.E1 ∙ Saturn's Moon Monsters
• S6.E2 ∙ Aliens vs. Stalin at Area 51
• S6.E3 ∙ The Black Hole Next Door
• S6.E4 ∙ Pluto's Evil Twin
• S6.E5 ∙ Aliens in the Amazon
• S6.E6 ∙ Secrets of the Alien Signals
• S6.E7 ∙ Planet of the Metal Aliens
• S6.E8 ∙ Did Aliens Nuke Mars?