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Nasa's Unexplained Files

The last humans to walk on the Moon discovered something strange on the lunar surface. Plus, a Nasa scientist investigates a strange phenomenon

Today · Monday, 20 April 2 airings
13:00
Discovery History
S5 E7 · The Moon's Strange Secret
23:00
Discovery Science
S4 E7 · Aliens in the Amazon
Tomorrow · Tuesday, 21 April 2 airings
00:00
Discovery Science
Secrets of the Alien Signals
13:00
Discovery History
S5 E8 · Saturn's Death Star
Wednesday, 22 April 1 airing
13:00
Discovery History
S4 E1 · Pluto's Evil Twin
Thursday, 23 April 1 airing
13:00
Discovery History
The Black Hole Next Door
Friday, 24 April 1 airing
13:00
Discovery History
Aliens vs Stalin at Area 51
Saturday, 25 April 1 airing
17:00
Discovery Science
Pluto's Stranger Things
Monday, 27 April 2026 3 airings
03:00
Discovery Science
Pluto's Stranger Things
13:00
Discovery History
S4 E4 · Saturn's Moon Monsters
23:00
Discovery Science
Pluto's Stranger Things
Tuesday, 28 April 2026 1 airing
00:00
Discovery Science
S4 E2 · Rise of the Planet Killer