Name: Absolute Zero
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Nova

"Absolute Zero" presents the epic story of humanity's struggle to master extreme cold. This NOVA special re-creates groundbreaking discoveries across four centuries that expanded our knowledge of low temperatures and led ultimately to today's cutting edge "cold technologies."

Absolute Zero: The Conquest of Cold Preview

The story of the harnessing of cold and the race to reach the lowest temperature possible.

Absolute Zero

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Follow along as NASA launches the Mars 2020 Mission, perhaps the most ambitious hunt yet for signs of ancient life on Mars. In February 2021, the spacecraft blazes into the Martian atmosphere at some 12,000 miles per hour and lowers the Perseverance Rover into the rocky Jezero Crater, home to a dried-up river delta scientists think could have harbored life. Perseverance will comb the area for signs of life and collect samples for possible return to Earth. Traveling onboard is a four-pound helicopter that will conduct a series of test flights—the first on another planet. During its journey, Perseverance will also test technology designed to produce oxygen from the Martian atmosphere, in hopes that the gas could be used for fuel—or for humans to breathe—on future missions. (Premiered February 24, 2021)

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

Looking for Life on Mars

A person is tested for COVID-19 at a drive-thru testing site in Florida in July 2020. Image Credit: Paul Hennessy/NurPhoto, Getty Images

Figuring out when to get tested after exposure requires understanding what happens once the virus enters your body. We’ve got you covered.

Figuring out when to get tested after exposure requires understanding what happens once the virus enters your body. We’ve got you covered.

I’ve been exposed to Covid-19. When should I get tested?

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.

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.

Absolute Zero

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