Alien Sightings with David Spergel

If the multiverse exists, where does our universe end and another begin? Neil deGrasse Tyson and comic co-host Chuck Nice tackle a wide-ranging grab bag of fan questions covering bubble universes, the nature of now, fractals, Hoag's Object, and more.NOTE: StarTalk+ Patrons can li ...  Show more

Why did intelligence evolve in the universe? Neil deGrasse Tyson, Chuck Nice, and Gary O’Reilly explore the nature of intelligence, information theory, consciousness, and whether AI is actually intelligent at all with David Krakauer, evolutionary biologist and president of the Sa ...  Show more

A whistleblower claims that the U.S. government is covering up what it knows about aliens on Earth, and several military pilots recently testified to seeing strange objects in the sky. It kinda feels like the tide is turning on UFOs — even NASA is taking these sightings seriously ...  Show more

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

On the program this week Jonathan chats to world-renowned Astrophysicist Neil deGrasse Tyson about his new book as well as all things cosmos related. This week for the Newsround Jonathan McCrea was joined by Dr Fergus McAuliffe and  scientist Jessamyn Fairfield. They discussed a ...  Show more

<span style="font-weight: 400;">Sam Harris speaks with Neil deGrasse Tyson about our place in the universe. They discuss our current understanding of extra-solar planets, the prospect that there is complex life elsewhere in the galaxy, the Fermi problem, the possibility that a ...