Extras

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 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 Why NASA is Back on Mars

NOVA

Why NASA is Back on Mars

NASA's Perseverance rover and the first-ever space helicopter landed on Mars.

Why NASA is Back on Mars

Video thumbnail: NOVA This NASA Scientist Helps Prevent Mars from Contamination

NOVA

This NASA Scientist Helps Prevent Mars from Contamination

How do you keep Earth microbes from contaminating Mars?

This NASA Scientist Helps Prevent Mars from Contamination

Video thumbnail: NOVA Looking for Life on Mars Preview

NOVA

Looking for Life on Mars Preview

NASA launches its most ambitious search yet for traces of ancient life on Mars.

Looking for Life on Mars Preview

Video thumbnail: NOVA Feast Your Eyes on the First-Ever Mars 2020 Mission Videos

NOVA

Feast Your Eyes on the First-Ever Mars 2020 Mission Videos

Watch amazing high-definition footage of the Perseverance landing.

Feast Your Eyes on the First-Ever Mars 2020 Mission Videos

Video thumbnail: NOVA Secrets in our DNA Preview

NOVA

Secrets in our DNA Preview

What can DNA testing companies reveal about our ancestry and health, and at what risk?

Secrets in our DNA Preview

Video thumbnail: NOVA How—and why—DNA Testing Uses Biased Reference Databases

NOVA

How—and why—DNA Testing Uses Biased Reference Databases

Are DNA ancestry tests equally accurate for all test takers?

How—and why—DNA Testing Uses Biased Reference Databases

Video thumbnail: NOVA Half Sisters Unite Thanks to DNA Testing

NOVA

Half Sisters Unite Thanks to DNA Testing

In 2018, June Smith takes a consumer DNA test, hoping to solve a longstanding mystery.

Half Sisters Unite Thanks to DNA Testing

Support for PBS.org provided by: