What type of time travel is in “A Christmas Carol”? Neil deGrasse Tyson and comedian Chuck Nice answer fan questions on time travel, paradoxes, and wormholes with theoretical physicist, Brian Greene. Did Ebenezer Scrooge get pulled through a wormhole?

(Originally Aired December 20, 2022)

NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here:
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What is a gravitational wave? Janna Levin and comedian Matt Kirshen sit down with physicist Rainer Weiss to discuss LIGO, black holes, and the physics of gravitational waves.

(Originally Aired October 4, 2016)

NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here:
https://startalkmedia.com/show/deciphering-gravitational-waves-janna-levin-startalk-stars/

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Are alien spacecraft here on Earth? Neil deGrasse Tyson and comedian Chuck Nice discuss the UAP hearings, unexplained cosmic phenomena, dark matter, and more with astrophysicist and NASA UAP chair David Spergel.

NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free here:
https://startalkmedia.com/show/alien-sightings-with-david-spergel/

Thanks to our Patrons David Anderson, Paul Balchin, Gary Droege, Antonin Bukovsky, Bill Bailey, Nathan Ramsey, Allan Schwartz, Tom Voyles, Curt Helvey, Walquiria Fontanez, Peg & Rick, Brandon, DJ Thuggy, Lorenzo Olivera, James Cobb, devon, Peter Čerešník, Rick, VICTOR HERNANDEZ, Pohev, Terry Burke, Barbara Guerra-Torres, Tyler Provencher, and Mariann for supporting us this week.

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