"I believe we have barely scratched the surface in terms of what's left to discover." — Sarah Parcak

"I believe we have barely scratched the surface in terms of what's left to discover." — Sarah Parcak Brian Lasenby/iStock hide caption

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Brian Lasenby/iStock
"I believe we have barely scratched the surface in terms of what's left to discover." — Sarah Parcak

"I believe we have barely scratched the surface in terms of what's left to discover." — Sarah Parcak

Brian Lasenby/iStock

Hidden

What lies beyond the reach of the naked eye, and how do these hidden forces shape our lives? This hour, TED speakers reveal forgotten cities, underwater canyons, tiny parasites, and a boiling river.

"Really tiny motions or really fast motions — these are things that we don't typically see with our eyes." — Abe Davis Bret Hartman/TED hide caption

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Bret Hartman/TED

How Can Hidden Sounds Be Captured By Everyday Objects

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"There's more history in the deep sea than all the museums in the world combined." — Robert Ballard Andrew Heavens/TED hide caption

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Andrew Heavens/TED

What Hidden Underwater Worlds Are Left To Discover?

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Octopus's Garden Yellow Dubmarine

"[Parasites] exert this enormous influence on the world around us, they shape ecosystems and they change minds and manipulate behavior." — Ed Yong Bret Hartman/TED hide caption

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Bret Hartman/TED

Can We Fall Prey To Hidden Parasites?

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"Satellite imagery allows us to ... record information in different parts of the light spectrum ... that we simply cannot see with our human eyes." — Sarah Parcak Ryan Lash/TED hide caption

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Ryan Lash/TED

How Can Satellite Images Unlock Secrets To Our Hidden Past?

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Pharaoh's Dance Miles Davis
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Bitches Brew
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"I am the first scientist to be given the shaman's blessing to study their site." — Andrés Ruzo James Duncan Davidson/TED hide caption

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Could A Boiling River From A Childhood Legend Exist?

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