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The Sacrifice of Cassini • 2020 • episode "8/13" Cosmos: Possible Worlds

Category: Astronomy

A scientist figures out how to go to the moon while fighting for his life in a war trench.

Cosmos: Possible Worlds • 2020 • 13 episodes •

Ladder to the Stars

An adventure spanning billions of years into the evolution of life.

2020 • Astronomy

The Fleeting Grace of the Habitable Zone

A long-term vision of humanity's future worlds is explored.

2020 • Astronomy

Lost City of Life

Explore the story behind the man who found the first clues to life's beginnings on Earth.

2020 • Astronomy


Nikolai Vavilov risked his life for a discovery that would change the history of science.

2020 • Astronomy

The Cosmic Connectome

An abandoned orphan's dream opens the way to understanding the architecture of thought.

2020 • Astronomy

The Man of a Trillion Worlds

A young Carl Sagan realizes his childhood dreams, carrying his mentors' research forward.

2020 • Astronomy

The Search for Intelligent Life on Earth

A hidden underground network, a collaboration of four kingdoms of life, is revealed.

2020 • Astronomy

The Sacrifice of Cassini

A scientist figures out how to go to the moon while fighting for his life in a war trench.

2020 • Astronomy

Magic Without Lies

The man who stumbled on a hole in the reality of quantum mechanics and the still-unfolding technology that made it possible.

2020 • Astronomy

A Tale of Two Atoms

How a deadly embrace between science and state altered the fate of the world, and a gripping cautionary tale of mass casualty and unlikely survival.

2020 • Astronomy

Shadows of Forgotten Ancestors

From the birth of the devil in ancient Persia, where a beloved family dog becomes a seething beast, to a searing story of saintliness among macaque monkeys, join an exploration into the human potential for change. One of history's greatest monsters is transformed into one of its shining lights.

2020 • Astronomy

Coming of Age in the Anthropocene

In what kind of world can a child born in 2020 expect to grow up? When did our slide into planetwide environmental destruction begin? Enter the possible world that awaits a 2020 baby in her twenties: one darkened by our refusal to confront the real and mounting challenges we face but one which still offers a message of hope.

2020 • Astronomy

Seven Wonders of the New World

A visit to the 2039 New York World's Fair, where intractable problems may have been solved.

2020 • Astronomy

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Strange Signals from Outer Space

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Darkness Falls

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The Moon and Beyond

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Black Hole Swarms

It’s been conjectured that the center of the Milky Way is swarming with tens of thousands of black holes. And now we’ve actually seen them.

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Today Phil explains that YES, there are other planets out there and astonomers have a lot of methods for detecting them. Nearly 2000 have been found so far. The most successful method is using transits, where a planet physically passes in front of its parent star, producing a measurable dip in the star’s light. Another is to measuring the Doppler shift in a star’s light due to reflexive motion as the planet orbits. Exoplanets appear to orbit nearly every kind of star, and we’ve even found planets that are the same size as Earth. We think there may be many billions of Earth-like planets in our galaxy.

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