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PODCAST

PBS Space Time

Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth with our astrophysicist host: Matthew O’Dowd. For all business inquiries and sponsorship opportunities please reach out to: pbsspacetime@lighthouseagents.com Matt O"Dowd spends his time studying the universe, especially really far-away things like quasars, super-massive black holes, and evolving galaxies. He uses telescopes in space to

science astronomy

All Episodes

18:51

The Nature of Nothing | Space Time

PBS Space Time ·

2026/10/17

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 19-10-17It turns out that "nothing" is one of the most interesting somethings in all of physics. Signup for your free trial to The Great Courses Plus here: http://ow.ly/OOOp30beNytNote: There is a correction in this video that has been addressed in the pinned comment below.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space

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16:07

The Missing Mass Mystery

PBS Space Time ·

2026/10/16

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 25-10-17For years, astronomers have been unable to find up to half of the baryonic matter in the universe. We may just have solved this problem. You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail

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14:20

The Vacuum Catastrophe

PBS Space Time ·

2026/10/16

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 02-11-17If vacuum energy really does have the enormous value predicted by quantum field theory then our gently expanding, geometrically flat universe shouldn’t exist. This is the vacuum catastrophe.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook:

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12:53

Zero-Point Energy Demystified

PBS Space Time ·

2026/10/15

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 08-11-17Let’s talk about the mysterious zero-point energy and what it really can, and really can’t do.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit:

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19:32

Suicide Space Robots

PBS Space Time ·

2026/10/14

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 22-11-17Let’s take a moment to remember the selfless sacrifices made by some amazing robotic explorers. And be sure to learn more about your personal DNA story by going to https://www.23andMe.com/spacetime and taking advantage of their special holiday offer.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at

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13:17

Citizen Science + Zero-Point Challenge Answer | Space...

PBS Space Time ·

2026/10/13

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 29-11-17The future of science is you.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit: http://www.reddit.com/r/pbsspacetimeHelp translate our

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17:33

Understanding the Uncertainty Principle with Quantum...

PBS Space Time ·

2026/10/13

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 06-12-17Sometimes intuitive, large-scale phenomena can give us incredible insights into the extremely unintuitive world of quantum mechanics. Sign up for your free trial of The Great Courses Plus at http://ow.ly/HAvT30beNAjToday the humble sound wave is going to open the door to really understanding Heisenberg’s uncertainty principle, and, ultimately quantum fields and

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14:20

The Origin of 'Oumuamua, Our First Interstellar...

PBS Space Time ·

2026/10/12

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 13-12-17We were recently visited by a traveler from outside our solar system. This is the first time we’ve ever seen an object that came to us from interstellar space. It's name is 'Oumuamua. Check out http://curiositystream.com/spacetime You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at

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15:53

Extinction by Gamma-Ray Burst

PBS Space Time ·

2026/10/11

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 20-12-17Find out about the last time and the next time the Earth will be hit by a Gamma-ray Burst. You can learn more about your personal DNA story by going to https://23andme.com/spacetimeYou can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook:

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3:20

Space Time VR

PBS Space Time ·

2026/10/11

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 22-12-17Find the experience here:https://www.oculus.com/experiences/gear-vr/1499563420081410/ Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

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16:34

What Do Stars Sound Like?

PBS Space Time ·

2026/10/10

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 10-01-18We can now map the interiors of stars by “listening” to their harmonies as they vibrate with seismic waves. Learn through active problem-solving at Brilliant: https://brilliant.org/SpaceTime/ You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook:

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17:40

Horizon Radiation

PBS Space Time ·

2026/10/09

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 17-01-18Learn about Horizon radiation and why it's essential for us to understand as we continue our journey towards the Unruh Effect and Hawking Radiation.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime

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16:59

The End of the Habitable Zone

PBS Space Time ·

2026/10/08

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 24-01-18Learn through active problem-solving at Brilliant: https://brilliant.org/SpaceTime/ The Sun is getting brighter and the planets in our solar system that are habitable are changing. Check out Infinite Series at https://www.youtube.com/channel/UCs4aHmggTfFrpkPcWSaBN9gYou can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space

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13:31

Kronos: Devourer Of Worlds

PBS Space Time ·

2026/10/08

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 31-01-18What happens when a star eats its planets? Find out on today’s Space Time Journal Club.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit:

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19:03

What is Energy?

PBS Space Time ·

2026/10/07

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 14-02-18Energy is the most powerful and useful concept in all of physics, but what exactly is it?You can start your free trial of The Great Courses Plus at http://ow.ly/E15c30hIv7cYou can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook:

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13:45

The Death of the Sun

PBS Space Time ·

2026/10/06

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 21-02-18What exactly will happen when the sun dies? You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit: http://www.reddit.com/r/pbsspacetimeHelp translate our

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11:32

The Trebuchet Challenge | Space Time

PBS Space Time ·

2026/10/05

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 28-02-18Do you have what it takes to calculate the awesome power of the trebuchet? You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit:

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16:24

Should Space be Privatized? | Space Time

PBS Space Time ·

2026/10/05

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 07-03-18Will the future of space exploration be guided by public or private entities? Which is better?Learn more about CuriosityStream at https://curiositystream.com/spacetimeYou can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time tshirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook:

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15:50

Hawking Radiation

PBS Space Time ·

2026/10/04

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 15-03-18It’s the most famous prediction of perhaps the most famous genius of our time ... Stephen Hawking's theory of Hawking Radiation.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time t-shirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot]

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13:12

Scientists Have Detected the First Stars

PBS Space Time ·

2026/10/03

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 21-03-18What do the first stars in the universe, dark matter, and superior siege engines have in common? You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time t-shirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit:

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