Extras

Video thumbnail: NOVA The Big Lie about Monarch Butterflies

NOVA

The Big Lie about Monarch Butterflies

Join NOVA producer Arlo Pérez as he unlearns a “fact” he was taught as a child.

The Big Lie about Monarch Butterflies

Video thumbnail: NOVA How Mask-Wearing Misinformation Became a Reality

NOVA

How Mask-Wearing Misinformation Became a Reality

There are various reasons why people believe in misinformation.

How Mask-Wearing Misinformation Became a Reality

Video thumbnail: NOVA Dream Hacking: Decisions, Addictions, and Sleep

NOVA

Dream Hacking: Decisions, Addictions, and Sleep

Watch the first-ever video documenting this live two-way dream communication.

Dream Hacking: Decisions, Addictions, and Sleep

Video thumbnail: NOVA Why Misinformation Matters

NOVA

Why Misinformation Matters

The spread of misinformation is influencing human behavior.

Why Misinformation Matters

Video thumbnail: NOVA New COVID-19 Variants Spread More Easily

NOVA

New COVID-19 Variants Spread More Easily

Why are the new coronavirus variants making COVID-19 more transmissible?

New COVID-19 Variants Spread More Easily

Video thumbnail: NOVA Lingering Symptoms from COVID-19 are “Unprecedented”

NOVA

Lingering Symptoms from COVID-19 are “Unprecedented”

Could an out-of-order immune system be to blame?

Lingering Symptoms from COVID-19 are “Unprecedented”

Video thumbnail: NOVA This University Monitors COVID-19 Through Saliva Testing

NOVA

This University Monitors COVID-19 Through Saliva Testing

The University of Illinois is trying to control the spread of COVID-19 by collecting spit.

This University Monitors COVID-19 Through Saliva Testing

Video thumbnail: NOVA High-Risk High-Rise Preview

NOVA

High-Risk High-Rise Preview

Can skyscrapers be made safer, more efficient, and livable in our rapidly growing cities?

High-Risk High-Rise Preview

Video thumbnail: NOVA NOVA Universe Revealed: Milky Way Preview

NOVA

NOVA Universe Revealed: Milky Way Preview

Explore the wonders and mysteries of our galaxy—the giant city of stars we call home.

NOVA Universe Revealed: Milky Way Preview

Video thumbnail: NOVA NOVA Universe Revealed: Age of Stars Preview

NOVA

NOVA Universe Revealed: Age of Stars Preview

Voyage to discover the sun’s place in a grand cycle of birth, death and renewal.

NOVA Universe Revealed: Age of Stars Preview

Video thumbnail: NOVA Edible Insects Promo

NOVA

Edible Insects Promo

Take a tasty look at insect foods that could benefit our health and our warming planet.

Edible Insects Promo

Video thumbnail: NOVA This Detector Can Catch Cosmic Neutrinos

NOVA

This Detector Can Catch Cosmic Neutrinos

Neutrinos could help unlock one of the biggest mysteries in physics today.

This Detector Can Catch Cosmic Neutrinos

Video thumbnail: NOVA The Arctic Jet Stream Affects Global Climate. Here's Why.

NOVA

The Arctic Jet Stream Affects Global Climate. Here's Why.

The jet stream is a band of wind that influences weather in the northern hemisphere.

The Arctic Jet Stream Affects Global Climate. Here's Why.

Video thumbnail: NOVA Arctic Drift Preview

NOVA

Arctic Drift Preview

Join scientists on a daring polar voyage to uncover the Arctic’s climate secrets.

Arctic Drift Preview

Video thumbnail: NOVA Particles Unknown Preview

NOVA

Particles Unknown Preview

Join the hunt for the universe’s most common—yet most elusive and baffling—particle.

Particles Unknown Preview

Video thumbnail: NOVA What is the Endocannabinoid System?

NOVA

What is the Endocannabinoid System?

Cannabinoid receptors, named after cannabis, are found in nearly every organ in the body.

What is the Endocannabinoid System?

Video thumbnail: NOVA A Veteran's Story of Medical Cannabis Use and Arrest

NOVA

A Veteran's Story of Medical Cannabis Use and Arrest

For Black people in America, the war on cannabis is still ongoing.

A Veteran's Story of Medical Cannabis Use and Arrest

Video thumbnail: NOVA Incarcerated for Cannabis: Who's Still in Prison and Why?

NOVA

Incarcerated for Cannabis: Who's Still in Prison and Why?

Many states have legalized cannabis for medical use, but thousands are still in prison.

Incarcerated for Cannabis: Who's Still in Prison and Why?

Video thumbnail: NOVA How Some Parents Brought CBD to Market to Treat Epilepsy

NOVA

How Some Parents Brought CBD to Market to Treat Epilepsy

About a third of epilepsy patients don't respond to medication.

How Some Parents Brought CBD to Market to Treat Epilepsy

Video thumbnail: NOVA How Cannabis Affects Teens' Brains

NOVA

How Cannabis Affects Teens' Brains

Our natural endocannabinoids reach their highest levels as the brain develops.

How Cannabis Affects Teens' Brains

Video thumbnail: NOVA Cannabis Reverses Brain Aging in Mice

NOVA

Cannabis Reverses Brain Aging in Mice

Low doses of THC from cannabis can help older mice learn faster, researchers found.

Cannabis Reverses Brain Aging in Mice

Video thumbnail: NOVA The Cannabis Question Preview

NOVA

The Cannabis Question Preview

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

The Cannabis Question Preview

Video thumbnail: NOVA Why are Bats Tolerant of the Diseases They Carry?

NOVA

Why are Bats Tolerant of the Diseases They Carry?

Viruses circulate so well within bat colonies — could they hold secrets to better health?

Why are Bats Tolerant of the Diseases They Carry?

Video thumbnail: NOVA Unique Adaptations may Explain Bats' Resistance to Viruses

NOVA

Unique Adaptations may Explain Bats' Resistance to Viruses

Bats are really effective at dumping heat to keep their body temperatures fairly normal.

Unique Adaptations may Explain Bats' Resistance to Viruses