logo
episode-header-image
May 13
47m 50s

Cosmic Queries – Negative Gravity

NEIL DEGRASSE TYSON
About this episode

What happens to gravity when matter converts to energy? Neil deGrasse Tyson and co-host Paul Mecurio dive into fan questions about the speed of light, time machine mistakes, and what Neil would do if he were an alien.

NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free.

Thanks to our Patrons daniel gordon, Amadeusz Synowski, Geo Bucur, Alexander Dent, Kimberly, Jordan, Kieran McMillen, Nico, Nicholas Stegers, Cuyler Cochran, Nicholas Alonso, William, Melissa Harper, Harrison White, DRaymond831, Jeff Imparato, Pascal Sanders, Fabiola Horváth, Ryan McNamara, Damian Spencer, Lucas Hoopingarner, Matt, Greg Juhl, mary beth frohnapfel, Sam Green, Btyan758, Nicole Pernat, MilesHigh, Simon Cooke, Laszlo, Andy Demsky, Adam Arnold, Sergio Silva, Lewis Lobdell, Mortakapo, Thomas Celia, ali kansso, Kenneth Mcfarland, JJ Sullivan, Ivan Gonzalez, Jerry, Dennis Boston, Earnest Stephens, Adriano Boriani, CAlvin Wait, Jeff, sandra newell, Will, Pam, and Ed Einowski for supporting us this week.

Subscribe to SiriusXM Podcasts+ to listen to new episodes of StarTalk Radio ad-free and a whole week early.
Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

Up next
Aug 22
Mindreading with Jean-Rémi King
What would it take to actually read someone’s mind? Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly explore the science and ethics of decoding thoughts with Jean-Rémi King, a neuroscience researcher at Meta’s Paris lab. NOTE: StarTalk+ Patrons can listen to this ent ... Show More
57m 4s
Aug 19
Are We Alone? with Jill Tarter
Are we alone in the universe? Neil deGrasse Tyson and comic co-host Matt Kirshen sit down with one of the founders of the SETI Institute, Jill Tarter, to explore the search for intelligent life beyond Earth, technosignatures, The Drake Equation, and more.NOTE: StarTalk+ Patrons c ... Show More
53m 30s
Aug 12
Cosmic Queries - Flat Universe
If you crunched the asteroid belt into one object, would it make a planet? Neil deGrasse Tyson and cohost Chuck Nice answer fan questions about the shape of the universe, the origin of matter, the Casimir Force, pizza toppings, and more!NOTE: StarTalk+ Patrons can listen to this ... Show More
47m 51s
Recommended Episodes
Jan 2019
AaS! 96: Hey, who took all the antimatter?
Why are matter and antimatter symmetric? What happened in the early universe to make matter win? Do we have any clue as to why? What do puppies have to do with it? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All ... Show More
23m 5s
Oct 2024
Ask A Spaceman Ep. 233: Why Do We Care About Methane On Mars?
What’s behind the Martian Methane Mystery? Is it a sign of life, or just some strange chemical process? Or are we just fooling ourselves? I discuss these questions and more in today’s Ask a Spaceman!   This episode is sponsored by BetterHelp. Give online therapy a try at betterhe ... Show More
35m 18s
May 2024
AaS! 224: Can Life Survive on Locked Planets?
How do planets get tidally locked? What are these systems typically like? Can life find a home in such a challenging environment? I discuss these questions and more in today’s Ask a Spaceman! This episode is sponsored by BetterHelp. Give online therapy a try at betterhelp.com/spa ... Show More
37m 33s
Oct 2024
Ask A Spaceman Ep. 234: How Could We Turn the Sun Into a Telescope?
How do gravitational lenses work? Where would a spacecraft need to be to use the Sun’s gravity as a telescope? What could we learn about exoplanets with this on weird trick? I discuss these questions and more in today’s Ask a Spaceman!   This episode is sponsored by BetterHelp. G ... Show More
35m 39s
Nov 2024
Ask A Spaceman Ep. 235: Is it Time to Redefine the Planet?
How did Pluto get demoted? What makes a planet a planet anyway? Why do we now have so many different kinds of planets, and should we make things simpler? I discuss these questions and more in today’s Ask a Spaceman!   This episode is sponsored by BetterHelp. Give online therapy a ... Show More
39m 53s
Sep 2023
AaS! 207: How Far Do We Travel in Our Lives?
What is the combined motion of everything in the universe? How does all of that influence us? Are we just going around in circles, or is there something more? I discuss these questions and more in today’s Ask a Spaceman! This episode is sponsored by BetterHelp. Give online therap ... Show More
38m 8s
Sep 2024
AaS! 231: What Made the Local Bubble?
Where do we live within the galaxy? What shapes the local bubble? How long will we be inside it? I discuss these questions and more in today’s Ask a Spaceman! This episode is sponsored by BetterHelp. Give online therapy a try at betterhelp.com/spaceman and get on your way to bein ... Show More
30m 43s
Mar 2024
Ep. 466 - Fire in the Mountains
The Appalachian region may not readily seem like a fire-prone region, but parts of it certainly are. Fire can be an important tool in sustaining biodiversity, but modern understanding of its role is limited. That is why people like Dr. Don Hagan study the effects of prescribed fi ... Show More
48m 57s
Feb 2024
Ep. 460 - Floral Chemistry Revisited
For Dr. Rob Raguso, the phrase "stop and smell the roses" takes on a whole new meaning. Dr. Raguso studies the intricate world of floral chemistry. You are undoubtedly familiar with some of the wonderful odors flowers produce but such tantalizing smells are only the beginning. Th ... Show More
1h 7m