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NOVA
What Are UFOs?
Season 52
Episode 1
After decades in the shadows, UFOs are being studied seriously. Are they weather balloons, optical illusions, secret military technology? Or something else? Follow scientists as they try to unravel the mystery of the strangest objects in our skies.
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53:40
Dive into the universe at the tiniest – and weirdest – of scales.
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53:34
Meet the surprising, oddball worlds moving around our solar system.
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53:34
Visit strange, frozen worlds to discover the bizarre ice that forms beyond Earth.
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53:34
Discover the powerful volcanic eruptions that have shaped worlds across our solar system.
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53:34
What are the weirdest worlds in our solar system, and how did they come to be?
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53:34
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.
53:38
Explore big discoveries that have revolutionized our understanding of the universe.
53:40
Find out who’s using your data and what you can do about it.
53:34
Explore the spectacular cosmic phenomenon of a total solar eclipse.
53:30
Explore the promise and perils of new A.I. technologies.
53:10
Follow the quest to recover DNA millions of years old for the very first time.
53:29
Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.