Name: Reef Rescue
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Nova

If oceans continue to warm at the current pace, coral reefs could be wiped out by the end of the century. But scientists from around the globe are rushing to help corals adapt to a changing climate through assisted evolution.

Scientists race to help corals adapt to warming oceans through assisted evolution.

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Reef Rescue

Some corals, called "super corals," are more resistant to temperature changes and bleaching. Discover how scientist Ruth Gates began a "super coral" breeding program to create more resilient reefs.

Coral reefs are in crisis as ocean heatwaves are draining them of life.

Scientists Breed a New Generation of "Super Corals"

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Coral reefs are not just beautiful, they are also home to over a quarter of all marine life and are crucial to human societies around the globe. But as the climate changes and oceanic heat waves become commonplace, corals are bleaching and reefs are dying off. Now, marine biologists from across the world are teaming up to counteract this catastrophe with a technique called assisted evolution. Follow scientists as they attempt to crossbreed heat-resistant corals, and even transplant corals’ algae, in a race to save the coral reefs from extinction. (Premiered April 21, 2021)

Carnegie Institution for Science

Hawaii Institute of Marine Biology

Scientists race to help corals adapt to warming oceans through assisted evolution.

Planet Earth

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.

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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.

Reef Rescue

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Support Provided By

Explore More

Can Super Corals Save Reefs?

It's Not Just Us: Corals Also Thrive Best in Diverse Company

The Coral Reefs We Depend On Most May Fall First

Mass Coral Bleaching Devastates Great Barrier Reef for Second Consecutive Year

Lethal Seas

Reef Rescue

Can the World’s Elite Warriors Save the Oceans?

Scientists Breed a New Generation of "Super Corals"

Palau's Improbably Healthy Coral Reefs

Australia: Life Explodes

What is Coral Bleaching?

Hope from the Deeps for Coral Reefs