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Nova

The Age of Exploration and Europe’s imperial colonization of far-off lands was launched by a revolution in ship design that made long-distance voyages practical. A newly discovered 500-year-old wreck offers vital clues to this momentous innovation.

As we excavate a 500-year-old wreck, learn the secrets behind history’s great ships.

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Canada

United States

Northern Mariana Islands

Puerto Rico

American Samoa

Guam

U.S. Virgin Islands

U.S. Minor Outlying Islands

US, US Territories, Canada

US & Territories

Ship That Changed the World

Underwater archaeologists find mysterious bone fragments in a 500-year-old shipwreck off the coast of Sweden. What could they belong to?

Sometimes archaeology can reveal things that written sources can't.

Mysterious Bones Found in 500-Year-Old Shipwreck

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Five centuries ago, the Age of Exploration and Europe’s imperial colonization of far-off lands was launched by a revolution in ship design that made long-distance ocean voyages practical. But exactly how this momentous innovation happened eludes historians. Now, the excavation of a rare intact wreck discovered off the coast of Sweden offers vital new clues to a maritime mystery. (Premiered June 2, 2021)

As we excavate a 500-year-old wreck, learn the secrets behind history’s great ships.

Ancient Worlds

NOVA investigates the story of cannabis from the criminalization that has disproportionately harmed communities of color to the latest medical understanding of the plant. What risks does cannabis pose to the developing brain? How much do we know about its potential medical benefits? As cannabis becomes socially accepted, scientists are exploring its long-term health consequences. (Premiered September 29, 2021)Check out a previously recorded panel discussion and audience Q&amp;A featuring experts and producers from "The Cannabis Question" <a href="https://youtu.be/nSTT5RZ_hxA">here</a>.

As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.

The Cannabis Question

A 2006 composite image from NASA's Hubble Space Telescope and Spitzer Telescope shows the chaos of baby stars in the Orion nebula some 1,500 light-years away. Image Credit: NASA/JPL-Caltech/STScI

With the upcoming launch of the James Webb Space Telescope, the Hubble era is gradually drawing to a close. Here are some highlights from the countless wonders Hubble has shown us during its 31 years in space.

10 spectacular Hubble Space Telescope images

A statue of Zheng He at the Sam Poo Kong Temple in Java, Indonesia. Image Credit: Budianto Santosa, Shutterstock

In the 1400s, Zheng He sailed thousands of miles around Asia and Africa in ships the size of soccer fields, spreading Chinese innovations like compasses and gunpowder in the process.

Ship That Changed the World

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Support Provided By

Explore More

The legendary Chinese seafarer the West overlooks

Last B-24

Mysterious Bones Found in 500-Year-Old Shipwreck

Arctic Ghost Ship

More Priceless Ancient Artifacts Found at Famed Antikythera Shipwreck

Ship That Changed the World

Ultimate Cruise Ship

Nazi Attack on America

Sunken Ship Rescue

X-Ray “Gun” Identifies A Shipwreck’s 800-Year-Old Knockoff Ceramics