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How the Universe Works Season 3 Episode 9

The Search for a Second Earth

Is there another Earth out there with liquid oceans, rocky continents and life like us? Astronomers seek the answer with spectroscopy, direct imaging and telescopes. They hope to find evidence of atmospheres, magnetospheres and signs of life.

Sep. 03, 2014

3 - 9
The Search for a Second EarthSep. 03, 2014
3 - 8
Our Voyage to the StarsAug. 27, 2014
3 - 7
Did a Black Hole Build the Milky Way?Aug. 20, 2014
3 - 6
Weapons of Mass ExtinctionAug. 13, 2014
3 - 5
Is Saturn Alive?Aug. 06, 2014
3 - 4
First Second of the Big BangJul. 30, 2014
3 - 3
Jupiter: Destroyer or Savior?Jul. 23, 2014
3 - 2
The End of the UniverseJul. 16, 2014
3 - 1
Journey from the Center of the SunJul. 09, 2014