Below is a list of the guests from episodes that were first aired or last repeated in 2008. To listen, click on the episode title to go to that episode’s page.
| Name | Discipline/Profession | Episode Title | Episode Date | Last Aired |
|---|---|---|---|---|
| Marc Abrahams | Journalism/Technical Writing | Skeptical Sunday: Risky Business | 11/12/2007 | 7/28/2008 |
| John Adams | Geography | Skeptical Sunday: Risky Business | 11/12/2007 | 7/28/2008 |
| David Anderegg | Author | Nerds | 4/7/2008 | 12/29/2008 |
| Natalie Angier | Journalism/Technical Writing | Sigh. It’s Science | 5/28/2007 | 6/30/2008 |
| Dan Ariely | Economics | Skeptical Sunday: Bear Right in a Bull Market | 9/15/2008 | 9/15/2008 |
| Robert Aymar | Physics | Get Your Boson | 6/16/2008 | 9/22/2008 |
| Quentin Baldwin | Neuroscience | What Were You Thinking? | 10/20/2008 | 8/31/2009 |
| Barry Barish | Physics | Get Your Boson | 6/16/2008 | 9/22/2008 |
| Deborah Bass | Aeronautics/Space | Robots On the Move | 5/26/2008 | 5/26/2008 |
| Natalie Batalha | Aeronautics/Space | Formula One: The Drake Equation | 3/17/2008 | 9/28/2008 |
| Stephen Baxter | Author | Humans in Space… ace… ace | 10/6/2008 | 9/29/2009 |
| Warren Belasco | Sociology | The End of Food | 6/25/2007 | 2/25/2008 |
| Deborah Bennett | Mathematics | What Were You Thinking? | 10/20/2008 | 8/31/2009 |
| Alex Bentley | Anthropology | Order and Chaos | 7/9/2007 | 3/24/2008 |
| Janice Bishop | Planetary Science | From Mars to Eternity | 8/11/2008 | 8/11/2008 |
| Paul Bloom | Psychology | Sigh. It’s Science | 5/28/2007 | 6/30/2008 |
| Baruch Blumberg | Health/Medicine | Life’s Stories | 5/5/2008 | 5/5/2008 |
| Donald Boozer | Humanities | Speaking Klingon | 7/7/2008 | 3/30/2009 |
| Mark Buchanan | Physics | Order and Chaos | 7/9/2007 | 3/24/2008 |
| Robert Burton | Neuroscience | Skeptical Sunday: You Sure About That? | 3/31/2008 | 3/31/2008 |
| Nicholas Carr | Author | TXT MSG: Thought | 9/1/2008 | 7/20/2009 |
| Kyu-Jin Cho | Engineering | Robots On the Move | 5/26/2008 | 5/26/2008 |
| Guy Consolmagno | Astronomy | War of the Worlds: Happy Anniversary | 10/27/2008 | 10/27/2008 |
| William Crossman | Author | You Talkin’ to Me? | 8/20/2007 | 2/4/2008 |
| Aubrey de Grey | Health/Medicine | Aging: Stop Right There! | 1/21/2008 | 6/2/2008 |
| Terence Deacon | Anthropology | Speaking Klingon | 7/7/2008 | 3/30/2009 |
| David Deamer | Chemistry | Life’s Stories | 5/5/2008 | 5/5/2008 |
| Kathryn Denning | Anthropology | Life’s Stories | 5/5/2008 | 5/5/2008 |
| Ellen Dissanayake | Author | Science and Art: Worlds Apart? | 3/10/2008 | 12/22/2008 |
| Paul Doherty | Physics | Sigh. It’s Science | 5/28/2007 | 6/30/2008 |
| Michael Dosmann | Biology | Genes That Fit | 7/21/2008 | 5/4/2009 |
| Laurance Doyle | Astronomy | You Talkin’ to Me? | 8/20/2007 | 2/4/2008 |
| Frank Drake | Astronomy | Formula One: The Drake Equation | 3/17/2008 | 9/28/2008 |
| Mary Droser | Earth Sciences/Ecology/Climate Change | Sex: From Beginning to End | 4/21/2008 | 9/1/2008 |
| Jack Dumbacher | Biology | You Animal! | 4/28/2008 | 1/19/2009 |
| Freeman Dyson | Futurist | May the Forces Be With You | 1/14/2008 | 1/14/2008 |
| David Eagleman | Neuroscience | Time’s Mysteries Part II: Warping Time | 11/10/2008 | 1/4/2010 |
| Jonathan Eisen | Evolutionary Sciences | Genes That Fit | 7/21/2008 | 5/4/2009 |
| Nicholas Epley | Sociology | Skeptical Sunday: Ghost of a Chance | 12/15/2008 | 12/15/2008 |
| Steve Ettlinger | Author | The End of Food | 6/25/2007 | 2/25/2008 |
| Tom Finger | Biology | Senses Census | 2/11/2008 | 10/13/2008 |
| BJ Fogg | Psychology | TXT MSG: Behavior | 9/8/2008 | 7/27/2009 |
| Cary Fowler | Industry | Ctrl-S | 10/22/2007 | 4/14/2008 |
| Andrew Fraknoi | Astronomy | May the Forces Be With You | 1/14/2008 | 1/14/2008 |
| Ian Freestone | Anthropology | Skeptical Sunday: The Science of Indiana Jones | 6/23/2008 | 6/23/2008 |
| Christopher French | Psychology | Skeptical Sunday: Ghost of a Chance | 12/15/2008 | 12/15/2008 |
| Tom Frey | Futurist | The Early Bird Gets the Wormhole | 3/3/2008 | 3/3/2008 |
| Jessica Fridrich | Engineering | Nerds | 4/7/2008 | 12/29/2008 |
| David M. Friedman | Author | Aging: Stop Right There! | 1/21/2008 | 6/2/2008 |
| Murray Gell-Mann | Physics | That’s Cosmic! | 12/8/2008 | 9/7/2009 |
| Jim Glass | Humanities | Speaking Klingon | 7/7/2008 | 3/30/2009 |
| John Gosling | Author | War of the Worlds: Happy Anniversary | 10/27/2008 | 10/27/2008 |
| J. Richard Gott | Physics | Formula One: The Drake Equation | 3/17/2008 | 9/28/2008 |
| Roy Gould | Astronomy | From Mars to Eternity | 8/11/2008 | 8/11/2008 |
| Roy Gould | Astronomy | From Mars to Eternity | 8/11/2008 | 8/11/2008 |
| Van Gould | Industry | Time’s Mysteries Part II: Warping Time | 11/10/2008 | 1/4/2010 |
| Brian Greene | Physics | That’s Cosmic! | 12/8/2008 | 9/7/2009 |
| Jonathan Grudin | Industry | TXT MSG: Thought | 9/1/2008 | 7/20/2009 |
| Lee Gutkind | Author | Driving Evolution | 8/13/2007 | 2/18/2008 |
| Fred Hall | Physics | Nerds | 4/7/2008 | 12/29/2008 |
| Paul Hammond | Other | Seth’s Attic | 8/18/2008 | 8/18/2008 |
| Mike Haney | Journalism/Technical Writing | Here’s an Idea! | 5/12/2008 | 5/12/2008 |
| Charles Harper | Industry | When Machines Rule | 9/24/2007 | 7/14/2008 |
| Sam Harris | Neuroscience | Skeptical Sunday: You Sure About That? | 3/31/2008 | 3/31/2008 |
| David Harrison | Humanities | Ctrl-S | 10/22/2007 | 4/14/2008 |
| Peter Hartlaub | Journalism/Technical Writing | Nerds | 4/7/2008 | 12/29/2008 |
| Marc Hauser | Psychology | Why We Do What We Shoo Be Do Be Do | 8/8/2008 | 5/18/2009 |
| John Hawks | Anthropology | Got Life? | 12/10/2008 | 12/10/2008 |
| John-Dylan Haynes | Neuroscience | Why We Do What We Shoo Be Do Be Do | 8/8/2008 | 5/18/2009 |
| Doug Hecox | Government | The Early Bird Gets the Wormhole | 3/3/2008 | 3/3/2008 |
| James Hughes | Sociology | Senses Census | 2/11/2008 | 10/13/2008 |
| Marco Iacoboni | Psychology | Why We Do What We Shoo Be Do Be Do | 8/8/2008 | 5/18/2009 |
| Lynne Isbell | Anthropology | Driving Evolution | 8/13/2007 | 2/18/2008 |
| Nina Jablonski | Anthropology | Senses Census | 2/11/2008 | 10/13/2008 |
| Robert Jackler | Health/Medicine | Skeptical Sunday: I’ll Buy That! | 11/17/2008 | 11/17/2008 |
| Susan Jacoby | Author | Skeptical Sunday: Is Ignorance Bliss? | 5/19/2008 | 4/13/2009 |
| Steven Jefferts | Physics | Time’s Mysteries Part I: Marking Time | 11/3/2008 | 12/28/2009 |
| Peter Jenniskens | Planetary Science | May the Forces Be With You | 1/14/2008 | 1/14/2008 |
| Alex Kacelnik | Health/Medicine | You Animal! | 4/28/2008 | 1/19/2009 |
| Carrie Keach | Physics | The Early Bird Gets the Wormhole | 3/3/2008 | 3/3/2008 |
| Jay Keasling | Engineering | Genes That Fit | 7/21/2008 | 5/4/2009 |
| Andrew Keen | Author | TXT MSG: Behavior | 9/8/2008 | 7/27/2009 |
| Matthew Kenworthy | Astronomy | Life’s Stories | 5/5/2008 | 5/5/2008 |
| David Kirsch | Biology | TXT MSG: Thought | 9/1/2008 | 7/20/2009 |
| Richard Klein | Anthropology | What Were You Thinking? | 10/20/2008 | 8/31/2009 |
| Dan Koeppel | Author | Here’s an Idea! | 5/12/2008 | 5/12/2008 |
| Eric Korpela | Astronomy | Life’s Stories | 5/5/2008 | 5/5/2008 |
| Bernie Krause | Biology | You Talkin’ to Me? | 8/20/2007 | 2/4/2008 |
| Lawrence Krauss | Physics | Order and Chaos | 7/9/2007 | 3/24/2008 |
| Sun Kwok | Physics | Nerds | 4/7/2008 | 12/29/2008 |
| Willliam LeFurgy | Computer Science | Ctrl-S | 10/22/2007 | 4/14/2008 |
| Jonah Lehrer | Author | Science and Art: Worlds Apart? | 3/10/2008 | 12/22/2008 |
| James Levine | Health/Medicine | TXT MSG: Behavior | 9/8/2008 | 7/27/2009 |
| Robert Levine | Psychology | Time’s Mysteries Part I: Marking Time | 11/3/2008 | 12/28/2009 |
| David Levy | Robotics/IA | Sex: From Beginning to End | 4/21/2008 | 9/1/2008 |
| Martin Lindstrom | Industry | Skeptical Sunday: I’ll Buy That! | 11/17/2008 | 11/17/2008 |
| Charley Lineweaver | Cosmology | Formula One: The Drake Equation | 3/17/2008 | 9/28/2008 |
| Charley Lineweaver | Cosmology | Life’s Stories | 5/5/2008 | 5/5/2008 |
| Ronald Mallett | Physics | Time’s Mysteries Part II: Warping Time | 11/10/2008 | 1/4/2010 |
| John Mankins | Aeronautics/Space | Humans in Space… ace… ace | 10/6/2008 | 9/29/2009 |
| Charles C. Mann | Author | First Contact! | 5/14/2007 | 11/24/2008 |
| Lori Marino | Evolutionary Sciences | Formula One: The Drake Equation | 3/17/2008 | 9/28/2008 |
| Lori Marino | Evolutionary Sciences | You Animal! | 4/28/2008 | 1/19/2009 |
| Lori Marino | Evolutionary Sciences | Skeptical Sunday: Bigfoot Press Conference | 8/25/2008 | 8/25/2008 |
| Jason Matheny | Industry | The End of Food | 6/25/2007 | 2/25/2008 |
| Demetrios Matsakis | Astronomy | Time’s Mysteries Part I: Marking Time | 11/3/2008 | 12/28/2009 |
| Jeff Meldrum | Health/Medicine | Skeptical Sunday: Bigfoot Press Conference | 8/25/2008 | 8/25/2008 |
| Michael Merzenich | Neuroscience | Building Better Brains | 6/9/2008 | 3/9/2009 |
| Norman Mohr | Other | Time’s Mysteries Part I: Marking Time | 11/3/2008 | 12/28/2009 |
| Virginia Morell | Author | You Animal! | 4/28/2008 | 1/19/2009 |
| David Morrison | Planetary Science | May the Forces Be With You | 1/14/2008 | 1/14/2008 |
| Sam Moulton | Psychology | Skeptical Sunday: Fortune Cooking | 1/28/2008 | 1/28/2008 |
| Leonel Moura | Art | Science and Art: Worlds Apart? | 3/10/2008 | 12/22/2008 |
| RIchard Muller | Physics | Life’s Stories | 5/5/2008 | 5/5/2008 |
| Basilio Noris | Industry | Robots On the Move | 5/26/2008 | 5/26/2008 |
| Stuart Parkin | Physics | Ctrl-S | 10/22/2007 | 4/14/2008 |
| Jerry Parrino | Entertainment | Skeptical Sunday: Bigfoot Press Conference | 8/25/2008 | 8/25/2008 |
| Charlie Petit | Journalism/Technical Writing | Sigh. It’s Science | 5/28/2007 | 6/30/2008 |
| Stephen Pinker | Psychology | What Were You Thinking? | 10/20/2008 | 8/31/2009 |
| Phil Plait | Astronomy | Skeptical Sunday: Bear Right in a Bull Market | 9/15/2008 | 9/15/2008 |
| Phil Plait | Astronomy | Skeptical Sunday: You Sure About That? | 3/31/2008 | 3/31/2008 |
| Phil Plait | Astronomy | Skeptical Sunday: Ghost of a Chance | 12/15/2008 | 12/15/2008 |
| Phil Plait | Astronomy | Skeptical Sunday: The Science of Indiana Jones | 6/23/2008 | 6/23/2008 |
| Phil Plait | Astronomy | Skeptical Sunday: I’ll Buy That! | 11/17/2008 | 11/17/2008 |
| Phil Plait | Astronomy | Skeptical Sunday: Is Ignorance Bliss? | 5/19/2008 | 4/13/2009 |
| Phil Plait | Astronomy | Skeptical Sunday: Fortune Cooking | 1/28/2008 | 1/28/2008 |
| Phil Plait | Astronomy | Skeptical Sunday: Risky Business | 11/12/2007 | 7/28/2008 |
| Mary Pope-Handy | Industry | Skeptical Sunday: Ghost of a Chance | 12/15/2008 | 12/15/2008 |
| A. K. Pradeep | Neuroscience | What Were You Thinking? | 10/20/2008 | 8/31/2009 |
| Peter Pringle | Journalism/Technical Writing | Skeptical Sunday: Is Ignorance Bliss? | 5/19/2008 | 4/13/2009 |
| David Quammen | Journalism/Technical Writing | Order and Chaos | 7/9/2007 | 3/24/2008 |
| Margaret Race | Biology | War of the Worlds: Happy Anniversary | 10/27/2008 | 10/27/2008 |
| Lisa Randall | Physics | That’s Cosmic! | 12/8/2008 | 9/7/2009 |
| James Randi | Entertainment | Skeptical Sunday: Fortune Cooking | 1/28/2008 | 1/28/2008 |
| Jim Rasenberger | Author | Here’s an Idea! | 5/12/2008 | 5/12/2008 |
| Galen Rathbun | Biology | You Animal! | 4/28/2008 | 1/19/2009 |
| Ed Regis | Author | Genes That Fit | 7/21/2008 | 5/4/2009 |
| Chris Richardson | Biology | Aging: Stop Right There! | 1/21/2008 | 6/2/2008 |
| Mary Roach | Author | Sex: From Beginning to End | 4/21/2008 | 9/1/2008 |
| Tom Rogers | Physics | Skeptical Sunday: The Science of Indiana Jones | 6/23/2008 | 6/23/2008 |
| David Ropeik | Sociology | Skeptical Sunday: Risky Business | 11/12/2007 | 7/28/2008 |
| Michael Rose | Earth Sciences/Ecology/Climate Change | Aging: Stop Right There! | 1/21/2008 | 6/2/2008 |
| John Rummel | Astrobiology | First Contact! | 5/14/2007 | 11/24/2008 |
| Paul Rybski | Robotics/IA | Robots On the Move | 5/26/2008 | 5/26/2008 |
| Ken Salisbury | Computer Science | Senses Census | 2/11/2008 | 10/13/2008 |
| Eric Sauser | Robotics/IA | Robots On the Move | 5/26/2008 | 5/26/2008 |
| Kevin Schindler | Astronomy | War of the Worlds: Happy Anniversary | 10/27/2008 | 10/27/2008 |
| Lisa Schoonerman | Industry | Building Better Brains | 6/9/2008 | 3/9/2009 |
| Rusty Schweickart | Aeronautics/Space | Humans in Space… ace… ace | 10/6/2008 | 9/29/2009 |
| Fred Sharpe | Biology | Seth’s Attic | 8/18/2008 | 8/18/2008 |
| Michael Shermer | Journalism/Technical Writing | Skeptical Sunday: Bear Right in a Bull Market | 9/15/2008 | 9/15/2008 |
| Everett Sherwood | Engineering | When Machines Rule | 9/24/2007 | 7/14/2008 |
| Neil Shubin | Biology | You Animal! | 4/28/2008 | 1/19/2009 |
| Timothy Silcott | Evolutionary Sciences | First Contact! | 5/14/2007 | 11/24/2008 |
| Aeon Skoble | Philosophy | War of the Worlds: Happy Anniversary | 10/27/2008 | 10/27/2008 |
| Gordy Slack | Journalism/Technical Writing | Building Better Brains | 6/9/2008 | 3/9/2009 |
| Norman Sleep | Physics | Seth’s Attic | 8/18/2008 | 8/18/2008 |
| Yi So-yeon | Engineering | Humans in Space… ace… ace | 10/6/2008 | 9/29/2009 |
| Sanjoy Som | Astrobiology | Humans in Space… ace… ace | 10/6/2008 | 9/29/2009 |
| Matt Springer | Health/Medicine | Skeptical Sunday: The Science of Indiana Jones | 6/23/2008 | 6/23/2008 |
| Allen Stairs | Philosophy | Why We Do What We Shoo Be Do Be Do | 8/8/2008 | 5/18/2009 |
| Simon Steel | Astronomy | Time’s Mysteries Part II: Warping Time | 11/10/2008 | 1/4/2010 |
| Gaurav Sukhatme | Robotics/IA | Robots On the Move | 5/26/2008 | 5/26/2008 |
| Timothy Taylor | Biology | Driving Evolution | 8/13/2007 | 2/18/2008 |
| Travis Taylor | Author | First Contact! | 5/14/2007 | 11/24/2008 |
| Max Tegmark | Physics | The Early Bird Gets the Wormhole | 3/3/2008 | 3/3/2008 |
| Brad Templeton | Computer Science | When Machines Rule | 9/24/2007 | 7/14/2008 |
| Edward Tenner | Journalism/Technical Writing | TXT MSG: Behavior | 9/8/2008 | 7/27/2009 |
| Christian Ternus | Engineering | Nerds | 4/7/2008 | 12/29/2008 |
| Christian Ternus | Engineering | The Early Bird Gets the Wormhole | 3/3/2008 | 3/3/2008 |
| Wayne Thatcher | Physics | Skeptical Sunday: Ghost of a Chance | 12/15/2008 | 12/15/2008 |
| Jim Thomas | Journalism/Technical Writing | Genes That Fit | 7/21/2008 | 5/4/2009 |
| Virginia Trimble | Physics | Order and Chaos | 7/9/2007 | 3/24/2008 |
| Chris Turney | Geology | Time’s Mysteries Part I: Marking Time | 11/3/2008 | 12/28/2009 |
| James Underdown | Sociology | Skeptical Sunday: Risky Business | 11/12/2007 | 7/28/2008 |
| James Underdown | Sociology | Skeptical Sunday: Bear Right in a Bull Market | 9/15/2008 | 9/15/2008 |
| James Underdown | Sociology | Skeptical Sunday: You Sure About That? | 3/31/2008 | 3/31/2008 |
| James Underdown | Sociology | Skeptical Sunday: Ghost of a Chance | 12/15/2008 | 12/15/2008 |
| James Underdown | Sociology | Skeptical Sunday: The Science of Indiana Jones | 6/23/2008 | 6/23/2008 |
| James Underdown | Sociology | Skeptical Sunday: I’ll Buy That! | 11/17/2008 | 11/17/2008 |
| James Underdown | Sociology | Skeptical Sunday: Is Ignorance Bliss? | 5/19/2008 | 4/13/2009 |
| James Underdown | Sociology | Skeptical Sunday: Bigfoot Press Conference | 8/25/2008 | 8/25/2008 |
| Douglas Vakoch | Sociology | Speaking Klingon | 7/7/2008 | 3/30/2009 |
| Diana Valencia | Physics | Life’s Stories | 5/5/2008 | 5/5/2008 |
| Jeffrey Van Cleve | Astronomy | Seth’s Attic | 8/18/2008 | 8/18/2008 |
| Tom Vanderbilt | Author | Skeptical Sunday: Bear Right in a Bull Market | 9/15/2008 | 9/15/2008 |
| Nicholas Wade | Journalism/Technical Writing | Driving Evolution | 8/13/2007 | 2/18/2008 |
| Al Wanamaker | Earth Sciences/Ecology/Climate Change | Aging: Stop Right There! | 1/21/2008 | 6/2/2008 |
| Sam Wang | Neuroscience | Building Better Brains | 6/9/2008 | 3/9/2009 |
| Howard Weiner | Neuroscience | Got Life? | 12/10/2008 | 12/10/2008 |
| Will Whitehorn | Aeronautics/Space | Humans in Space… ace… ace | 10/6/2008 | 9/29/2009 |
| Robert Whittaker | Biology | First Contact! | 5/14/2007 | 11/24/2008 |
| David Wilkinson | Theology | That’s Cosmic! | 12/8/2008 | 9/7/2009 |
| David Sloan Wilson | Evolutionary Sciences | Science and Art: Worlds Apart? | 3/10/2008 | 12/22/2008 |
| Will Wright | Entertainment | Got Life? | 12/10/2008 | 12/10/2008 |
| Eliezer Yudkowsky | Robotics/IA | When Machines Rule | 9/24/2007 | 7/14/2008 |
| Patricia Zaradic | Earth Sciences/Ecology/Climate Change | TXT MSG: Behavior | 9/8/2008 | 7/27/2009 |
| Brian Zenowich | Robotics/IA | Robots On the Move | 5/26/2008 | 5/26/2008 |
| Jonathan Zittrain | Author | TXT MSG: Thought | 9/1/2008 | 7/20/2009 |
| Jan Zivic | Industry | Building Better Brains | 6/9/2008 | 3/9/2009 |
| Matthew Zucker | Robotics/IA | Robots On the Move | 5/26/2008 | 5/26/2008 |
