Episode Guide
Earth's Secret Aliens
Series: NASA's Unexplained Files
Series Progress: Episode 1 of 432% Completed
A 60-minute space episode from NASA's Unexplained Files.
At a Glance
Release DateAugust 28, 2017
TypeEpisode
LanguageEnglish
Genrespace, SF, paranormal, mystery & suspense
Series Snapshot
Seasons6
Episodes43
Avg Episode60 min
You Are OnEpisode 1 of 43
Synopsis
Geologists discover alien deposits on the Earth's surface – and the answer could shed light on the cause of the greatest extinction in its history.
Where to Watch
Start with the quickest viewing option we have for this title.
Episodes are easier to follow from the main series page.
Series Binge Profile
Total Content Density: 42 hours 55 minutes (43 episodes)
Intensity Rating: Epic Binge - A massive saga. Set aside dedicated weekends for this run.
Binge Milestones
1 episode/day: 43 days
3 episodes/day: 15 days
5 episodes/day: 9 days
Episodes (43)
- - Earth's Secret Aliens Viewing
- S01E04 - Alien Death Ray
- S01E05 - Black Knight Rises
- S01E06 - Interstellar Gold Rush
- S01E07 - U.S. UFO & the Saturn Mega Hex
- S02E10 - Revenge of the Fireflies
- S02E02 - Life in Hell
- S02E03 - Top Secret Terror
- S02E04 - Hammer of Thor
- S02E05 - Spacewalk of Doom
- S02E06 - Did We Nuke Jupiter?
- S02E08 - Nazis on the Moon
- S02E09 - Lethal Weapons
- S03E01 - Pluto Under Pressure
- S03E02 - Return of the Moon Bugs
- S03E04 - Ghosts on a Comet
- S03E05 - The Moon That Disappeared
- S03E06 - Curse of the Red Planet
- S03E07 - Red Storm Rising
- S03E08 - Attack of the Thunderballs
- S04E01 - Pluto's Stranger Things
- S04E02 - Rise of the Planet Killer
- S04E03 - A President's Close Encounter
- S04E04 - The Earth Next Door
- S04E05 - Curse of the Full Moon
- S04E06 - Did Earth Have Two Moons?
- S04E07 - Mystery of the Invisible Planet
- S04E08 - Mars's Deepest Secret
- S05E01 - JFK UFO Conspiracy
- S05E02 - Curse of the Gas Giant
- S05E03 - The Sun's Evil Twin
- S05E05 - Stonehenge on Mars
- S05E06 - CIA's Secret Revenge
- S05E07 - The Moon's Strange Secret
- S05E08 - Saturn's Death Star
- S06E01 - Saturn's Moon Monsters
- S06E02 - Aliens vs. Stalin at Area 51
- S06E03 - The Black Hole Next Door
- S06E04 - Pluto's Evil Twin
- S06E05 - Aliens in the Amazon
- S06E06 - Secrets of the Alien Signals
- S06E07 - Planet of the Metal Aliens
- S06E08 - Did Aliens Nuke Mars?
