Ranked #1
Pan Spermia
Pan Spermia
Transcript: We are uncertain enough about the range of possible life processes elsewhere in the universe that we should ... Read more
28 Jul 2011
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1min
Ranked #2
Life and Main Sequence Stars
Life and Main Sequence Stars
Transcript: For Sun-like stars in the main sequence that are either more or less massive than the Sun, the prospect of l... Read more
28 Jul 2011
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1min
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Ranked #3
Future of Life in the Universe
Future of Life in the Universe
Transcript: What is the long term role of life in the universe? In a sense, the universe seems like it was built for li... Read more
28 Jul 2011
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1min
Ranked #4
Remote Sensing Earths
Remote Sensing Earths
Transcript: Astronomers have successfully detected large extrasolar planets, and within a short period of time they will... Read more
28 Jul 2011
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1min
Ranked #5
Atmosphere of Terrestrial Planets
Atmosphere of Terrestrial Planets
Transcript: We can use the idea of remote sensing of terrestrial planets in our own solar system to get an idea of what ... Read more
28 Jul 2011
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1min
Ranked #6
Detecting Terrestrial Planets
Detecting Terrestrial Planets
Transcript: Each technique that is currently used to successfully detect extrasolar planets with a mass of Jupiter or la... Read more
28 Jul 2011
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1min
Ranked #7
Terraforming
Terraforming
Transcript: The damage we are causing to our planet, plus the knowledge that Venus and Mars may have been hospitable for... Read more
28 Jul 2011
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1min
Ranked #8
Ecosystems
Ecosystems
Transcript: Life itself, the atmosphere, the oceans, and the land form a complex interdependent system on the Earth. Al... Read more
28 Jul 2011
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1min
Ranked #9
Habitable Zone
Habitable Zone
Transcript: The traditional habitable zone for a star is defined in the terms of water remaining as a liquid, under the ... Read more
28 Jul 2011
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1min
Ranked #10
Evidence of Life on Titan
Evidence of Life on Titan
Transcript: An important place to study prebiotic chemistry and perhaps to detect evidence of life itself is Titan. Tit... Read more
28 Jul 2011
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1min