300 Million Earths: The Hunt for Habitable Exoplanets

Chapter 1: The Dream of Other Earths

0:55 - 5:15

Chapter 2: First Glimpses: Early Discoveries

First Glimpses: Early Discoveries. Most people imagine that the first planets we found outside our solar system were rocky worlds, maybe a bit like Mars or even Earth.

5:17 - 9:37

Chapter 3: Defining 'Earth-like' and Habitability

Defining 'Earth-like' and Habitability. Imagine standing on a world where the sun never moves.

9:39 - 14:13

Chapter 4: Tools of the Trade: Detection Methods

Tools of the Trade: Detection Methods. Of the more than five thousand exoplanets we've confirmed to exist, over 99 percent have never actually been seen.

14:15 - 19:08

Chapter 5: The Most Promising Candidates

The Most Promising Candidates. Imagine the scene. A signal arrives from a telescope, crystal clear.

19:10 - 24:57

Chapter 6: Reading Atmospheres for Clues

Reading Atmospheres for Clues. The search for a habitable world is a bit of a misdirection.

24:59 - 30:21

Chapter 7: Biosignatures: The Search for Life

Biosignatures: The Search for Life. What if we found it? The perfect twin of Earth, orbiting a sun-like star in the habitable zone.

30:23 - 34:53

Chapter 8: Next Generation Telescopes

Next Generation Telescopes. Think about the first photograph you ever saw of your great-grandparents.

34:55 - 41:13

Chapter 9: Are We Alone? The Fermi Paradox

41:15 - 46:36

Chapter 10: Our Cosmic Neighborhood: A Future View

Our Cosmic Neighborhood: A Future View. Imagine a telescope, but instead of using a mirror a few meters across, it uses the Sun itself as a lens.

46:38 - 52:07