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Where are all the aliens? Stephen Webb
The universe is incredibly old, astoundingly vast and populated by trillions of planets -- so where are all the aliens? Astronomer Stephen Webb has an explanation: we're alone in the universe. In a mind-expanding talk, h...
About This Episode
Where are all the aliens? Stephen Webb is an episode from TEDTalks Science et médecine by TED. The universe is incredibly old, astoundingly vast and populated by trillions of planets -- so where are all the aliens? Astronomer Stephen Webb h...
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This episode belongs to TEDTalks Science et médecine.
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Published Jul 19, 2018, 00:13:08 long, audio available.
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What is Where are all the aliens? Stephen Webb about?
The universe is incredibly old, astoundingly vast and populated by trillions of planets -- so where are all the aliens? Astronomer Stephen Webb has an explanation: we're alone in the universe. In a mind-expanding talk, he spells out the remarkable barriers a planet would need to clear in order to host an extraterrestrial civilization -- and makes a case for the beauty of our potential cosmic loneliness. "The silence of the universe is shouting, 'We're the creatures who got lucky,'" Webb says.
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Where are all the aliens? Stephen Webb is an episode from TEDTalks Science et médecine by TED.
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This episode is 00:13:08 long.
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This episode was published on Jul 19, 2018.
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Where are all the aliens? Stephen Webb is from TEDTalks Science et médecine by TED.
What are the episode details?
Published Jul 19, 2018 and 00:13:08 long