| 1. | Why The Universe May Be Full Of Alien Civilizations Featuring Dr. Avi Loeb | 1,751,914 | |
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| 2. | Are There Alien Artifacts in Our Solar System? with Dr. James Benford | 1,522,645 | |
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| 3. | Can We Travel Faster Than Light? with Dr. Miguel Alcubierre | 1,316,111 | |
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| 4. | Was There Someone Here Before Us? And Unusual Technosignatures with Jason Wright | 1,116,775 | |
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| 5. | The Growing List of Solutions to the Fermi Paradox with Stephen Webb | 1,057,444 | | The Fermi Paradox
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| 6. | Why Oumuamua May Have Been The First Sign of Intelligent Life with Dr. Avi Loeb | 1,050,324 | |
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| 7. | Why Intelligent Life in the Universe May Be Hidden with Isaac Arthur | 867,281 | |
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| 8. | 'We Are Not Alone' UFO Whistleblowers Kickoff New Hearings in Congress With Rep. Tim Burchett | 811,854 | |
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| 9. | What a Covert U.S. Government UFO Program Discovered with Colm Kelleher | 680,272 | |
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| 10. | Why Dinosaurs Would Have Ruled the Earth Featuring Dr. Steve Brusatte | 580,992 | |
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| 11. | Do We Share Earth With Someone Else? With Garry Nolan | 559,355 | Show |
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| 12. | Why the Solar System May Be Full of Life with NASA Chief Scientist Dr. James Green | 482,569 | |
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| 13. | Can We Solve Fermi's Paradox? with Dr. Duncan Forgan | 470,131 | |
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| 14. | The Most Unsettling Solutions to the Fermi Paradox With Stephen Webb | 434,021 | | The Fermi Paradox
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| 15. | The Mysterious Interstellar Object Oumuamua With Harvard's Dr. Avi Loeb | 433,003 | Vlog | OUMUAMUA
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| 16. | Envisioning Our Future with Isaac Arthur | 429,497 | |
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| 17. | Do We Live In An Infinite Universe? Featuring Paul Sutter | 409,930 | |
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| 18. | Developments in the UFO/UAP Phenomenon with Avi Loeb | 399,740 | |
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| 19. | Better than Earth: Superhabitable Exoplanets with Prof. Abel Mendez | 395,397 | |
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| 20. | Do We Really Want to Solve Fermi's Paradox? with Stephen Webb | 358,375 | |
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| 21. | Could First Contact with Aliens Be Unsettling? with Author Trevor Williams | 354,217 | |
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| 22. | What a Pentagon Insider Discovered About UFOs with Lue Elizondo | 350,753 | |
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| 23. | A Quantum Beginning for a Two-Sided Universe with Dr. Neil Turok | 345,351 | |
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| 24. | Our Spooky Universe with Paul Sutter | 340,422 | |
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| 25. | Finding Solutions to the Fermi Paradox with Harvard's Dr. Avi Loeb | 313,799 | | The Fermi Paradox
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| 26. | Do Gamma Ray Bursts Solve the Fermi Paradox? with Dr. James Annis | 312,856 | | The Fermi Paradox
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| 27. | The Mystery of the Wow! Signal | 310,698 | |
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| 28. | Is Planet 9 a Black Hole? With Dr. Jakub Scholtz and Dr. James Unwin | 299,973 | |
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| 29. | BLC1 the Proxima Centauri SETI Candidate with Jason Wright | 290,088 | |
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| 30. | Does Planet Nine Exist? Featuring Dr. Konstantin Batygin | 287,309 | |
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| 31. | Are We Being Watched? With Dr. Lisa Kaltenegger and Dr. Jackie Faherty | 281,019 | |
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| 32. | Breaking News on the Search for Planet Nine with Dr. Konstantin Batygin | 277,571 | |
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| 33. | Not of This Earth: Were There Unidentified Orbiting Objects in 1950? With Beatriz Villarroel | 275,159 | |
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| 34. | The Mystery of Planet Nine with Robert Finch | 273,444 | |
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| 35. | Why We May Be the Only Intelligent Life in the Universe with David Kipping of Cool Worlds | 272,952 | |
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| 36. | Why Would Aliens Be Here? With Avi Loeb and Robin Hanson | 272,827 | |
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| 37. | TOI 700 d TESS's First Earth-sized Habitable-Zone Planet w/Dr. Joey Rodriguez/Dr. Andrew Vanderburg | 243,445 | |
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| 38. | Uncovering Hidden UAP? | Surviving a Black Hole w/ Avi Loeb | 233,251 | |
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| 39. | Why We May Have Already Found Life On Mars with Dr. Patricia Ann Straat | 231,286 | |
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| 40. | Why Humans Will Never Colonize Mars with Gizmodo’s George Dvorsky | 229,715 | |
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| 41. | Identifying the Unidentified, UFOs with Avi Loeb | 220,799 | |
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| 42. | Searches for Superluminality, Aliens, and Impossible Knowledge with Dr. Robert Nemiroff | 220,700 | |
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| 43. | The Wow! Signal with Discoverer Dr. Jerry Ehman | 217,215 | |
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| 44. | Are There Many Worlds? With Sean Carroll | 212,859 | |
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| 45. | Mars And Beyond With Dr. Robert Zubrin | 212,664 | |
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| 46. | What If They Are Already Here? With Dr. Avi Loeb | 211,077 | Show |
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| 47. | Why the Future Will Be Weird with Isaac Arthur | 208,534 | | The Fermi Paradox
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| 48. | Will Human Civilization End? with Dr. David Grinspoon | 207,061 | |
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| 49. | Why We May Not Be Alone on Earth w/ Janusz Petkowski | 199,612 | Show |
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| 50. | Life on Venus? Phosphine found in the Clouds Featuring R.J. Graham | 197,760 | |
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| 51. | What Is 'Oumuamua? With Dr. Karen Meech | 196,779 | |
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| 52. | Type 2 Aliens may be at the Center of the Galaxy with Adam Frank | 196,681 | |
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| 53. | Why We May Not Be Alone In Our Solar System With NASA Chief Scientist Jim Green | 193,627 | |
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| 54. | What Do We Do if They Are Here? with Avi Loeb | 189,520 | |
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| 55. | How Far Back is the James Webb able to See? with Dr. Klaus Pontoppidan | 189,169 | |
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| 56. | The Human Far Future With Isaac Arthur | 189,121 | |
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| 57. | Scientist Reacting to the UAP Hearing in Congress with Dr. Jacob Haqq-Misra | 188,165 | |
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| 58. | Is it all just a Simulation? with Isaac Arthur | 187,090 | |
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| 59. | Was There a Technological Civilization Before Us? With Daniel Mills | 178,921 | |
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| 60. | The Antikythera Mechanism Explained with Dr. Tony Freeth | 178,163 | |
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| 61. | How Many Are Out There? Estimating Intelligent Life in Our Galaxy with Dr. Chris Conselice | 177,776 | |
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| 62. | Why Wolfram Physics May Be the Key to Everything with Stephen Wolfram and Jonathan Gorard | 177,523 | |
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| 63. | The Unnerving Origin of Technosignatures with Caleb Scharf | 176,013 | |
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| 64. | Images of UAPs: Objects Discovered Same Day UFOs Flew Over D.C. in 1952 with Beatriz Villarroel | 174,603 | |
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| 65. | Alien Machine Civilizations, The End of Earth, and Our Future with Isaac Arthur | 169,466 | |
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| 66. | Is Interstellar Travel Possible? with Alberto Caballero | 169,305 | |
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| 67. | The Closest Star to the Solar System: Proxima Centauri with Parallax Nick | 168,223 | | Parallax
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| 68. | Fermi Paradox: Where are they? A Debate with Fraser Cain Moderated by Skylias | 168,222 | | The Fermi Paradox
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| 69. | Using Black Holes to Traverse the Universe with Dr. David Kipping | 167,114 | |
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| 70. | Will We Colonize Our Solar System? with Dr. Robert Zubrin | 166,024 | |
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| 71. | Are We the First Intelligent Life in our Galaxy? with David Kipping | 165,946 | |
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| 72. | Where Did The Universe Come From? With Prof. Geraint F. Lewis | 162,041 | Show |
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| 73. | The Most Powerful Space Telescope Ever with Dr. Klaus Pontoppidan | 160,762 | |
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| 74. | The Mysterious Star HD 139139 with Dr. Andrew Vanderburg | 159,926 | |
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| 75. | New Evidence Found for Planet 9 with Konstantin Batygin | 154,617 | |
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| 76. | The Unknown Physics of UFO/UAP With Avi Loeb | 151,845 | |
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| 77. | The Grabby Aliens Problem with Robin Hanson | 147,615 | |
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| 78. | Why is There Plutonium in This Star? Przybylski’s Star with David Kipping | 147,270 | |
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| 79. | Are We About to Discover Intelligent Alien Life? With Adam Frank | 147,070 | |
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| 80. | Have Older Alien Civilizations Already Settled the Galaxy? w/ Marshall Eubanks | 145,458 | |
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| 81. | What’s Eating the Universe? With Paul Davies | 143,497 | |
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| 82. | The First Image of Tabby's Star Structure Featuring Dr. David Kipping | 142,571 | |
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| 83. | Why There Are 10 Things You Should Know About Space With Dr. Becky Smethurst | 142,389 | |
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| 84. | 10 Reasons Why Oumuamua Will Blow Your Mind | 141,995 | |
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| 85. | Interstellar Visitors in the Oort Cloud with Amir Siraj | 141,916 | |
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| 86. | 'Like Nothing We've Seen Before' Psyche the Metal World Featuring Jim Bell | 140,616 | |
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| 87. | Why is Betelgeuse Dimming? With Dr. Edward Guinan | 140,476 | |
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| 88. | Are There Alien Artifacts Orbiting Earth? w/ Beatriz Villarroel | 140,069 | |
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| 89. | What Aliens May Look Like With Dr. Arik Kershenbaum | 137,636 | |
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| 90. | Why Don't We Know What Most of the Universe is Made of? w/ Daniel Whiteson | 136,678 | |
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| 91. | U.S. Congress investigates UFOs | Here's Why with Rep. Tim Burchett | 136,408 | Show | Counter-Strike: Source
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| 92. | Has an AI Arms Race Begun? With Dan Hendrycks | 134,828 | |
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| 93. | Should the U.S. Government Release UAP Data to the Public? w/ Jacob Haqq-Misra | 133,461 | |
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| 94. | UFO/UAP Whistleblower David Grusch Clearance Reinstated with Rep. Eric Burlison | 131,378 | |
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| 95. | Into the Impossible with Dr. Brian Keating | 129,673 | |
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| 96. | What Would an Alien Megastructure Look Like? Ringworlds with Larry Niven and Gregory Benford | 128,777 | |
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| 97. | Why the Universe May Be Full of Aliens Featuring Dr. Avi Loeb | 128,618 | Show |
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| 98. | Where Did the Laws of the Universe Come From? With Paul Davies | 128,277 | |
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| 99. | Planet Nine Might Be Something Far Stranger Than a Planet featuring Kate Brown and Harsh Mathur | 126,920 | |
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| 100. | New Way to Warm Mars in One Year | Edwin Kite and Robin Wordsworth | 126,877 | |
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