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Nasa's Unexplained Files

A startling discovery suggests the toxic clouds of Venus could be the origin of life on Earth. Plus, an insight into theories that Earth once had two moons

Today · Tuesday, 12 May 4 airings
00:00
Discovery Science
Did Earth Have Two Moons?
15:00
Discovery Science
Mystery of the Invisible Planet
16:00
Discovery Science
S4 E8 · Mars's Deepest Secret
17:00
Discovery Science
S5 E2 · Curse of the Gas Giant
Tomorrow · Wednesday, 13 May 6 airings
01:00
Discovery Science
Mystery of the Invisible Planet
02:00
Discovery Science
S4 E8 · Mars's Deepest Secret
03:00
Discovery Science
S5 E2 · Curse of the Gas Giant
15:00
Discovery Science
S5 E3 · The Sun's Evil Twin
16:00
Discovery Science
S3 E20 · Earth's Secret Aliens
17:00
Discovery Science
S5 E5 · Stonehenge on Mars
Thursday, 14 May 6 airings
01:00
Discovery Science
S5 E3 · The Sun's Evil Twin
02:00
Discovery Science
S3 E20 · Earth's Secret Aliens
03:00
Discovery Science
S5 E5 · Stonehenge on Mars
15:00
Discovery Science
S5 E6 · CIA's Secret Revenge
16:00
Discovery Science
S5 E8 · Saturn's Death Star
17:00
Discovery Science
Planet of the Metal Aliens
Friday, 15 May 7 airings
01:00
Discovery Science
S5 E6 · CIA's Secret Revenge
02:00
Discovery Science
S5 E8 · Saturn's Death Star
03:00
Discovery Science
Planet of the Metal Aliens
08:00
Discovery Science
Pluto's Stranger Things
09:00
Discovery Science
S4 E2 · Rise of the Planet Killer
10:00
Discovery Science
S4 E3 · A President's Close Encounter
15:00
Discovery Science
S4 E6 · Did Aliens Nuke Mars?
Saturday, 16 May 3 airings
01:00
Discovery Science
S4 E6 · Did Aliens Nuke Mars?
16:00
Discovery Science
Did Earth Have Two Moons?
17:00
Discovery Science
Mystery of the Invisible Planet
Monday, 18 May 6 airings
02:00
Discovery Science
Did Earth Have Two Moons?
03:00
Discovery Science
Mystery of the Invisible Planet
08:00
Discovery Science
The Earth Next Door
09:00
Discovery Science
S4 E5 · Curse of the Full Moon
10:00
Discovery Science
Did Earth Have Two Moons?
23:00
Discovery Science
Mystery of the Invisible Planet
Tuesday, 19 May 2026 4 airings
00:00
Discovery Science
S4 E8 · Mars's Deepest Secret
08:00
Discovery Science
Mystery of the Invisible Planet
09:00
Discovery Science
S4 E8 · Mars's Deepest Secret
10:00
Discovery Science
S5 E2 · Curse of the Gas Giant