Are we alone in the universe? We're close to ...

In seven years as a political prisoner in Venezuela, activist Leopoldo López kept asking one question: Who holds the keys to freedom? Now the leader of an alliance of dissidents and exiles from more than 60 countries, he makes the case that open-source, decentralized technology c ...  Show more

Katie Paris quit her career in Washington, DC, to figure out how to make politics feel less like strangers shouting at each other and more like friends looking out for each other. In this practical talk, she reveals why conversations between real people can have a bigger impact o ...  Show more

What are the planets outside our solar system like? Astrophysicist and TED Fellow Jessie Christiansen has helped find thousands of them (and counting), and the variety is more wonderful and wild than you might imagine. She shares details on the trends emerging from the data -- in ...  Show more

Has JWST found potential alien worlds? Neil deGrasse Tyson and comedian Matt Kirshen learn about exoplanet discovery on the frontier, how higher oxygen gave us dinosaurs, and what type of life could be out there with astrophysicist and astrobiologist Lisa Kaltenegger. 

N ...

Are we alone in the universe? Are we one of a crowd? This hour, we travel the cosmos with TED science curator David Biello, exploring where we are in the search for alien life. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and t ...  Show more

Is there another planet in the universe like Earth? Is there life elsewhere? And if so, how advanced is it? Join us as Sara Seager — astronomer, planet hunter, MIT professor, and MacArthur Genius Grant recipient — presents a mind-blowing progress report on the rigorous search ...