Where are all the aliens? | Stephen Webb
TED Talks Daily 
About this episode
<p>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.</p><p><br></p><hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>
Listen to this episode in English to learn English
Podcast episodes are one of the highest-density ways to absorb English at native pace. Where are all the aliens? | Stephen Webb from TED Talks Daily gives you natural dialogue, unscripted speech, and vocabulary that actually appears in real conversations.
In the Clue app, every word in the transcript is tappable. Tap an unknown word, see the translation in your language instantly, and keep listening without breaking flow.