The UnXplained: Mysteries of the Universe

Season 1, Episode 3: Mysterious Earth

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The blue marble we call Earth remains in large part a mystery to the 8 billion people who live on it. How did Earth come to exist, and what are the secrets of its survival? How long will humans be able to call it "home"?

All Episodes - Season 1

Are We Alone?
Episode 1
Are We Alone?
 Alien Earthlings
Episode 2
Alien Earthlings
 Mysterious Earth
Episode 3
Mysterious Earth
 Venus: Earth's Evil Twin
Episode 4
Venus: Earth's Evil Twin
 Dangers From Space
Episode 5
Dangers From Space
 Search for the Next Frontier
Episode 6
Search for the Next Frontier
 Alien Moons
Episode 7
Alien Moons
 The Life and Death of the Sun
Episode 8
The Life and Death of the Sun
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