How the Universe Works - Cast

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Name	Episodes	Known for
Phil Plait Self - Astronomer / Self - Astronomer, Discover Magazine / Self - Phd., Astronomer Self - Astronomer / Self - Astronomer, Discover Magazine / Self - Phd., Astronomer See fewer	81	Arrival (II) (2016)
Michelle Thaller Self - Astronomer / Self - Astronomer, NASA Goddard Space Flight Center / Self - Astronomer, NASA Goddard Space Flight Cente / Self - Phd., Astronomer, NASA Goddard Space Flight Center Self - Astronomer / Self - Astronomer, NASA Goddard Space Flight Center / Self - Astronomer, NASA Goddard Space Flight Cente / Self - Phd., Astronomer, NASA Goddard Space Flight Center See fewer	80	Spaceship Spitzer: The Slowlian Web (2008)
Richard Lintern Self - Narrator Self - Narrator See fewer	70	The Bank Job (2008)
Mike Rowe Self - Narrator / Self - Sel - Narrator Self - Narrator / Self - Sel - Narrator See fewer	68	Dirty Jobs (2005)
Hakeem Oluseyi Self - Astrophysicist Self - Astrophysicist See fewer	62	The Stars in My Soul
James S. Bullock Self - Astrophysicist Self - Astrophysicist See fewer	41	Through the Wormhole (2010)
Lawrence Krauss Self - Cosmologist / Self - Theoretical Physicist, Arizona State University / Self - Theoretical Physicist Self - Cosmologist / Self - Theoretical Physicist, Arizona State University / Self - Theoretical Physicist See fewer	41	Salt and Fire (2016)
Paul M. Sutter Self - Astrophysicist Self - Astrophysicist See fewer	37	UFO (2018)
Moogega Cooper Self - Planetary Protection Engineer Self - Planetary Protection Engineer See fewer	35	Good Night Oppy (2022)
Dan Durda Self - Planetary Scientist / Self - Astrophysicist / Self - Planetary Scientist, Southwest Research Institute / Self - Planetary Scientist, Scientific Consultant Self - Planetary Scientist / Self - Astrophysicist / Self - Planetary Scientist, Southwest Research Institute / Self - Planetary Scientist, Scientific Consultant See fewer	35	Alternate Universe: A Rescue Mission (2016)
Nina Lanza Self - Planetary Scientist Self - Planetary Scientist See fewer	29	Mars: One Day on the Red Planet (2020)
Jani Radebaugh Self - Planetary Scientist / Self - Planetary Geologist / Self - Planetary Scientist and Geologist Self - Planetary Scientist / Self - Planetary Geologist / Self - Planetary Scientist and Geologist See fewer	27	Horizon (I) (1964)
Erik Dellums Self - Narrator Self - Narrator See fewer	24	Homicide: Life on the Street (1993)
Kevin Walsh Self - Astronomer Self - Astronomer See fewer	23	Leben aus dem All (2021)
Michio Kaku Self - Theoretical Physicist / Self - Theoretical Physicist, City University of New York / Self - Phd., Theoretical Physicist, City University of New York Self - Theoretical Physicist / Self - Theoretical Physicist, City University of New York / Self - Phd., Theoretical Physicist, City University of New York See fewer	22	Accidental Truth: UFO Revelations (2023)
Alex Filippenko Self - Astrophysicist / Self - Astrophysicist, University of California: Berkeley / Self - Astrophysicis Self - Astrophysicist / Self - Astrophysicist, University of California: Berkeley / Self - Astrophysicis See fewer	18	The Universe (2002)
Max Tegmark Self - Physicist / Self - Theoretical Physicist Self - Physicist / Self - Theoretical Physicist See fewer	17	Life 3.0
Grant Tremblay Self - Astrophysicist Self - Astrophysicist See fewer	16	Universe (2021)
Amber Straughn Self - Astrophysicist Self - Astrophysicist See fewer	12	Unknown: Cosmic Time Machine (2023)
Chiara Mingarelli Self - Astrophysicist Self - Astrophysicist See fewer	11	Nova (1974)
Chris McKay Self - Astrobiologist Self - Astrobiologist See fewer	11	The Mars Underground (2007)
Sean Carroll Self - Theoretical Physicist / Self - Cosmologist Self - Theoretical Physicist / Self - Cosmologist See fewer	10	Earth to Echo (2014)
Carly Howett Self - Planetary Scientist Self - Planetary Scientist See fewer	9	Solar System (2024)
Katie Freese Self - Cosmologist / Self - Theoretical Physicist Self - Cosmologist / Self - Theoretical Physicist See fewer	9	Horizon (I) (1964)
Lewis Dartnell Self - Astrobiologist Self - Astrobiologist See fewer	9	Size Matters (2018)
David Kipping Self - Astronomer / Self - Astronomer, Harvard-Smithsonian Center for Astrophysics Self - Astronomer / Self - Astronomer, Harvard-Smithsonian Center for Astrophysics See fewer	8	Watching the End of the World (2020)
Geoff Marcy Self - Astronomer, University of California, Berkeley / Self - Astronomer / Self - Phd., Astronomer, University of California, Berkeley Self - Astronomer, University of California, Berkeley / Self - Astronomer / Self - Phd., Astronomer, University of California, Berkeley See fewer	8	Extreme Universe (2010)
Albert Einstein Self - Theoretical Physicist (archive footage) Self - Theoretical Physicist (archive footage) See fewer	6	Schooling the World (2010)
Konstantin Batygin Self - Planetary Astrophysicist Self - Planetary Astrophysicist See fewer	5	Nova (1974)
Jessie Christiansen Self - Astrophysicist Self - Astrophysicist See fewer	5	All Illusions Must Be Broken (2024)
David Grinspoon Self - Astrobiologist / Self - Astrobiologist, Denver Museum of Nature & Science Self - Astrobiologist / Self - Astrobiologist, Denver Museum of Nature & Science See fewer	5	Nova Wonders (2018)
Edwin Hubble Self - Astronomer (archive footage) Self - Astronomer (archive footage) See fewer	4	Kesil (2018)
Meenakshi Wadhwa Self - Planetary Scientist Self - Planetary Scientist See fewer	4	Meteorite Men (2009)
Shep Doeleman Self - Astronomer Self - Astronomer See fewer	4	The Edge of All We Know (2020)
Erik Asphaug Self - Planetary Scientist Self - Planetary Scientist See fewer	3	Underwater Universe (2011)
Caleb Scharf Self - Astrobiologist / Self - Astronomer Self - Astrobiologist / Self - Astronomer See fewer	3	One Strange Rock (2018)
Matthew O'Dowd Self - Astrophysicist (as Matt O'Dowd) Self - Astrophysicist (as Matt O'Dowd) See fewer	3	PBS Space Time (2015)
Philip Hopkins Self - Theoretical Astrophysicist Self - Theoretical Astrophysicist See fewer	3	Masterpiece (1971)
Heidi Hammel Self - Astronomer / Self - Planetary Scientist / Self - Planetary Astronomer Self - Astronomer / Self - Planetary Scientist / Self - Planetary Astronomer See fewer	3	Wildest Weather in the Solar System (2011)
Carolyn Porco Self - Planetary Scientist / Self - Cassini Scientist / Self - Cassini Mission Imaging Lead Self - Planetary Scientist / Self - Cassini Scientist / Self - Cassini Mission Imaging Lead See fewer	3	Star Trek (2009)
Peter H. Schultz Self - Impact Specialist / Self - Impact Specialist, Brown University / Self - Impact Specialist, Brown Universiy (as Prof. Peter Schultz) Self - Impact Specialist / Self - Impact Specialist, Brown University / Self - Impact Specialist, Brown Universiy (as Prof. Peter Schultz) See fewer	3	Ancient Aliens (2009)
Cathy Plesko Self - Planetary Scientist Self - Planetary Scientist See fewer	3	How the Earth Works (2013)
Jedidah Isler Self - Astrophysicist Self - Astrophysicist See fewer	3	Mars (2016)
Amy Mainzer Self - Astronomer / Self - NASA Jet Propulsion Laboratory Self - Astronomer / Self - NASA Jet Propulsion Laboratory See fewer	3	Don't Look Up (2021)
David Spergel Self - Theoretical Physicist / Self - Astrophysicist Self - Theoretical Physicist / Self - Astrophysicist See fewer	3	Nova (1974)
Fritz Zwicky Self - Astronomer (archive footage) Self - Astronomer (archive footage) See fewer	2
Arno Penzias Self - Astronomer / Self - Radio Astronomer (archive footage) Self - Astronomer / Self - Radio Astronomer (archive footage) See fewer	2	Nova (1974)
Robert Woodrow Wilson Self - Astronomer / Self - Radio Astronomer (archive footage) Self - Astronomer / Self - Radio Astronomer (archive footage) See fewer	2	Life of a Universe (2017)
Amir Caspi Self - Solar Physicist / Self - Astrophysicist Self - Solar Physicist / Self - Astrophysicist See fewer	2	Gathered in Darkness (2025)
Dan Stern Self - Astronomer Self - Astronomer See fewer	2	How the Universe Works (2010)
Avi Loeb Self - Astrophysicist (as Abraham 'Avi' Loeb) Self - Astrophysicist (as Abraham 'Avi' Loeb) See fewer	2	God Versus Aliens (2023)
Priyamvada Natarajan Self - Astrophysicist Self - Astrophysicist See fewer	2	The Edge of All We Know (2020)
Clifford Johnson Self - Theoretical Physicist (as Clifford V. Johnson) Self - Theoretical Physicist (as Clifford V. Johnson) See fewer	2	Nova (1974)
Sarah Stewart Self - Planetary Scientist Self - Planetary Scientist See fewer	2	Nova (1974)
Kimberly Moore Self - Planetary Scientist Self - Planetary Scientist See fewer	2	How the Universe Works (2010)
Phil Hopkins Self - Theoretical Physicist / Self - Theoretical Astrophysicist Self - Theoretical Physicist / Self - Theoretical Astrophysicist See fewer	2	How the Universe Works (2010)
Jessica Esquivel Self - Particle Physicist Self - Particle Physicist See fewer	2	Mission Unstoppable with Miranda Cosgrove (2019)
Kathryn Bywaters Self - Astrobiologist Self - Astrobiologist See fewer	2	How the Universe Works (2010)
Andrew Pontzen Self - Cosmologist Self - Cosmologist See fewer	2	Nova (1974)
Aomawa Baker Self - Astronomer (as Aomawa Shields) Self - Astronomer (as Aomawa Shields) See fewer	2	The Trojan Women (2004)
Gibor Basri Self - Astrophysicist Self - Astrophysicist See fewer	2	The Universe (2007)
Mike Brown Self - Planetary Astronomer / Self - Astronomer Self - Planetary Astronomer / Self - Astronomer See fewer	2	PBS News Hour (1975)
Stephen Hawking Self - Theoretical Physicist Self - Theoretical Physicist See fewer	2	Star Trek: The Next Generation (1987)
Carlos Frenk Self - Cosmologist Self - Cosmologist See fewer	2	Through the Wormhole (2010)
Edo Berger Self - Astronomer Self - Astronomer See fewer	2	Nova (1974)
Todd Thompson Self - Astrophysicist Self - Astrophysicist See fewer	2	How the Universe Works (2010)
W. Dean Pesnell Self - Solar Physicist / Self - Heliophysicist (as Dean Pesnell) Self - Solar Physicist / Self - Heliophysicist (as Dean Pesnell) See fewer	2	Nova (1974)
Stan Love Self - Astronaut (as Stanley Love) Self - Astronaut (as Stanley Love) See fewer	2	Naked Science (2004)
Russell Schweickart Self - Apollo 9 Astronaut, B612 Foundation (as Rusty Schweickart) Self - Apollo 9 Astronaut, B612 Foundation (as Rusty Schweickart) See fewer	2	Asteroid Day (2014)
Michael Rampino Self - Geologist Self - Geologist See fewer	2	Nova (1974)
Andrea Ghez Self - Astronomer (as Prof. Andrea Ghez) Self - Astronomer (as Prof. Andrea Ghez) See fewer	2	The Edge of All We Know (2020)
Mark Sykes Self - Planetary Astronomer, Planetary Science Institute (as Dr. Mark Sykes) Self - Planetary Astronomer, Planetary Science Institute (as Dr. Mark Sykes) See fewer	2	Nova (1974)
John Asher Johnson Self - Astronomer (as John Johnson) Self - Astronomer (as John Johnson) See fewer	2	Nova (1974)
Claudia Alexander Self - Planetary Science / Self - Planetary Scientist, NASA Jet Propulsion Laboratory (as Dr. Claudia Alexander) Self - Planetary Science / Self - Planetary Scientist, NASA Jet Propulsion Laboratory (as Dr. Claudia Alexander) See fewer	2	The Universe (2007)
Natalie Batalha Self - Astrophysicist, NASA Ames Research Center (as Dr. Natalie Batalha) Self - Astrophysicist, NASA Ames Research Center (as Dr. Natalie Batalha) See fewer	2	Finding the New Earth (2011)
Daniel Lathrop Self - Geophysicist Self - Geophysicist See fewer	2	Horizon (I) (1964)
Gilbert Collins Self - Physicist Self - Physicist See fewer	2	How the Universe Works (2010)
Hal Levison Self - Planetary Scientist / Self - Planetary Scientist, Southwest Research Institute (as Dr. Hal Levison) Self - Planetary Scientist / Self - Planetary Scientist, Southwest Research Institute (as Dr. Hal Levison) See fewer	2	The Universe (2007)
Linda J. Spilker Self - Cassini Mission Project Scientist (as Linda Spilker) Self - Cassini Mission Project Scientist (as Linda Spilker) See fewer	2	Horizon (I) (1964)
Janna Levin Self - Theoretical Physicist Self - Theoretical Physicist See fewer	2	Einstein and Hawking: Unlocking the Universe (2019)
Carey Lisse Self - Astronomer Self - Astronomer See fewer	2	Nova (1974)
Barack Obama Self - U.S. President, April 15, 2010 (archive footage) Self - U.S. President, April 15, 2010 (archive footage) See fewer	1	Leave the World Behind (2023)
Peter Higgs Self - Theoretical Physicist (archive footage) Self - Theoretical Physicist (archive footage) See fewer	1	Nova (1974)
Evgenya Shkolnik Self - Astronomer Self - Astronomer See fewer	1	How the Universe Works (2010)
Ben Oppenheimer Self - Astrophysicist Self - Astrophysicist See fewer	1	How the Universe Works (2010)
Heather A. Knutson Self - Assistant Professor of Planetary Science Self - Assistant Professor of Planetary Science See fewer	1	The Universe (2007)
Kevian Stassun Self - Phd., Physics and Astronomy Self - Phd., Physics and Astronomy See fewer	1	How the Universe Works (2010)
Jeremy Kasdin Self - Aerospace Engineer Self - Aerospace Engineer See fewer	1	How the Universe Works (2010)
Seth Shostak Self - Astronomer Self - Astronomer See fewer	1	The Day the Earth Stood Still (2008)
Vera C. Rubin Self - Astronomer (archive footage) (as Vera Rubin) Self - Astronomer (archive footage) (as Vera Rubin) See fewer	1	The Astronomers (1991)
Peggy Whitson Self - Astronaut Self - Astronaut See fewer	1	Pete Yorn: I Wanna Be the One (2020)
Melanie Barboni Self - Geochemist (as Mélanie Barboni) Self - Geochemist (as Mélanie Barboni) See fewer	1	Funny or Die's High Science (2023)
Marina Brozovic Self - Planetary Scientist Self - Planetary Scientist See fewer	1	Nova (1974)
Sean C. Soloman Self - Messenger Principal Investigator (as Sean Solomon) Self - Messenger Principal Investigator (as Sean Solomon) See fewer	1	NASA's Unexplained Files (2012)
Rana Adhikari Self - Physicist (as Rana X. Adhikari) Self - Physicist (as Rana X. Adhikari) See fewer	1	Rendezvous with the Future (2022)
Matthew Penn Self - Heliophysicist (as Matt Penn) Self - Heliophysicist (as Matt Penn) See fewer	1	Horizon (I) (1964)
Larry Molnar Self - Astronomer Self - Astronomer See fewer	1	Luminous (2022)
Greg Leonard Self - Astronomer Self - Astronomer See fewer	1	Home Road (2017)
Idan Ginsburg Self - Astrophysicist Self - Astrophysicist See fewer	1	How the Universe Works (2010)
Scott Hughes Self - Theoretical Astrophysicist Self - Theoretical Astrophysicist See fewer	1	How the Universe Works (2010)
John Spencer Self - Planetary Scientist Self - Planetary Scientist See fewer	1	Equinox (1986)
Dirk Terrell Self - Astrophysicist Self - Astrophysicist See fewer	1	How the Universe Works (2010)
Yaireska M. Collado-Vega Self - Heliophysicist (as Yaireska Collado-Vega) Self - Heliophysicist (as Yaireska Collado-Vega) See fewer	1	Great American Eclipse (2017)
Angela Des Jardins Self Self See fewer	1	Great American Eclipse (2017)
Michael Kezirian Self - Engineer Self - Engineer See fewer	1	Great American Eclipse (2017)
Jocelyn Bell Burnell Self - Astrophysicist (archive footage) (as Jocelyn Bell) Self - Astrophysicist (archive footage) (as Jocelyn Bell) See fewer	1	The Space (2023)
Mark Kelly Self - Astronaut (archive footage) Self - Astronaut (archive footage) See fewer	1	Space Shuttle Columbia: The Final Flight (2024)
Scott Kelly Self - Astronaut (archive footage) Self - Astronaut (archive footage) See fewer	1	Endurance: My Year in Space
Peter Galison Self - Astrophysicist Self - Astrophysicist See fewer	1	Containment (IV) (2015)
Katie Bouman Self - Data Scientist Self - Data Scientist See fewer	1	The Edge of All We Know (2020)
Anne Virkki Self - Planetary Scientist Self - Planetary Scientist See fewer	1	Tom Scott (2006)
Samuel Levin Self - Evolutionary Biologist Self - Evolutionary Biologist See fewer	1	The Agenda with Steve Paikin (2006)
Scott Bolton Self - Juno Principal Investigator Self - Juno Principal Investigator See fewer	1	Vangelis and the Journey to Ithaka (2013)
Paul Olsen Self - Geologist Self - Geologist See fewer	1	Dinosaur! (1991)
Amy Simon Self - Planetary Scientist Self - Planetary Scientist See fewer	1	Space's Deepest Secrets (2016)
Allessandra Pacini Self - Physicist Self - Physicist See fewer	1	How the Universe Works (2010)
Andy Chang Self (as Dr. Andy Chang) Self (as Dr. Andy Chang) See fewer	1	How the Universe Works (2010)
Sarah Stewart Self - Planetary Scientist Self - Planetary Scientist See fewer	1	How the Universe Works (2010)
Luisa Fernanda Zabrano-Marin Self - Space Scientist Self - Space Scientist See fewer	1	How the Universe Works (2010)
Simon Sheridan Self - Rosetta Scientist Self - Rosetta Scientist See fewer	1	How the Universe Works (2010)
Sarafina Nance Self Self See fewer	1	Columbia Sportswear, Intuitive Machines and Sarafina Nance Team Up to Support Women in STEM Fields (2023)
Holly Gilbert Self - Solar Physicist Self - Solar Physicist See fewer	1	Nasa Edge (2007)
Alan Stern Self - New Horizons Principal Investigator Self - New Horizons Principal Investigator See fewer	1	Persephone (IV)
Steve Squyres Self - Astronomer (as Prof. Steve Squyres) Self - Astronomer (as Prof. Steve Squyres) See fewer	1	Good Night Oppy (2022)
Michael Strauss Self - Astrophysicist (as Prof. Michael Strauss) Self - Astrophysicist (as Prof. Michael Strauss) See fewer	1	How the Universe Works (2010)
Robert P. Kirshner Self - Theoretical Physicist (as Dr. Robert P. Kirshner) Self - Theoretical Physicist (as Dr. Robert P. Kirshner) See fewer	1	The Universe (2007)
Gentry Lee Self - Space Flight Engineer Self - Space Flight Engineer See fewer	1	The Box (I) (2009)
Amanda Hendrix Self - Planetary Scientist (as Dr. Amanda Hendrix) Self - Planetary Scientist (as Dr. Amanda Hendrix) See fewer	1	Like a Country Song (2014)
Suzanne Staggs Self - Physicist (as Prof. Suzanne Staggs) Self - Physicist (as Prof. Suzanne Staggs) See fewer	1	How the Universe Works (2010)
Andrew Kirk Self - Plasma Physicist (as Dr. Andrew Kirk) Self - Plasma Physicist (as Dr. Andrew Kirk) See fewer	1	Engineering the Future (2020)
Laura Danly Self - Astronomer, Griffith Observatory (as Dr. Laura Danly) Self - Astronomer, Griffith Observatory (as Dr. Laura Danly) See fewer	1	The Universe (2007)
Robert Hurt Self - Astronomer, Caltech / Self - IPAC (as Dr. Robert Hurt) Self - Astronomer, Caltech / Self - IPAC (as Dr. Robert Hurt) See fewer	1	Robot Astronomy Talk Show (2008)
David Jewitt Self - Astronomer Self - Astronomer See fewer	1	Nova (1974)
John Spencer Self - New Horizons Co-Investigator Self - New Horizons Co-Investigator See fewer	1	Woman in Motion (2019)
Bryan Gaensler Self - Astronomer, Center for All-Sky Astrophysics (as Prof. Bryan Gaensler) Self - Astronomer, Center for All-Sky Astrophysics (as Prof. Bryan Gaensler) See fewer	1	Into the Universe: Mysteries of the Cosmos (2025)
Scott Kenyon Self - Astrophysicist, Smithsonian Astrophysical Observatory (as Dr. Scott Kenyon) Self - Astrophysicist, Smithsonian Astrophysical Observatory (as Dr. Scott Kenyon) See fewer	1	Born & Raised (2012)
Adam Showman Self - Planetary Scientist, University of Arizona (as Prof. Adam Showman) Self - Planetary Scientist, University of Arizona (as Prof. Adam Showman) See fewer	1	The Universe (2007)
Les Johnson Self - Advanced Propulsion Technologist Self - Advanced Propulsion Technologist See fewer	1	Solis (2018)
Taylor Wilson Self - Nuclear Scientist Self - Nuclear Scientist See fewer	1	Nova (1974)
William Hartmann Self - Planetary Scientist (as Dr. William K. Hartmann) Self - Planetary Scientist (as Dr. William K. Hartmann) See fewer	1	Future Flight (1987)
Monica Dunford Self - ATLAS Engineer (as Dr. Monica Dunford) Self - ATLAS Engineer (as Dr. Monica Dunford) See fewer	1	Particle Fever (2013)
Stan Woosley Self - Astrophysicist (as Prof. Stan Woosley) Self - Astrophysicist (as Prof. Stan Woosley) See fewer	1	Horizon (I) (1964)
Eve Stenson Self - Astrophysicist Self - Astrophysicist See fewer	1	How the Universe Works (2010)
Andrew Benson Self - Theoretical Astrophysicist (as Dr. Andrew Benson) Self - Theoretical Astrophysicist (as Dr. Andrew Benson) See fewer	1	How the Universe Works (2010)
Dante Lauretta Self - Cosmochemist, University of Arizona (as Prof. Dante Lauretta) Self - Cosmochemist, University of Arizona (as Prof. Dante Lauretta) See fewer	1	Nova (1974)
Juna Kollmeier Self - Astrophysicist, Carnegie Observatories (as Dr. Juna Kollmeier) Self - Astrophysicist, Carnegie Observatories (as Dr. Juna Kollmeier) See fewer	1	Extreme Universe (2010)
Alan Guth Self - Theoretical Physicist Self - Theoretical Physicist See fewer	1	Nova (1974)
Jason Wright Self - Astronomer Self - Astronomer See fewer	1	How the Universe Works (2010)
Paul Drake Self - Physicist (as Prof. Paul Drake) Self - Physicist (as Prof. Paul Drake) See fewer	1	How the Universe Works (2010)
Dan Long Self - SDSS Operations Engineer Self - SDSS Operations Engineer See fewer	1	How the Universe Works (2010)
Dan Coe Self - Astrophysicist, Space Telescope Science Institute (as Dr. Dan Coe) Self - Astrophysicist, Space Telescope Science Institute (as Dr. Dan Coe) See fewer	1	Unknown: Cosmic Time Machine (2023)
Risa Wechsler Self - Astrophysicist Self - Astrophysicist See fewer	1	Nova (1974)
Julie McEnery Self - Astrophysicist Self - Astrophysicist See fewer	1	How the Universe Works (2010)
Arpita Roy Self - Astronomer Self - Astronomer See fewer	1	How the Universe Works (2010)
Jena Meinecke Self - Laboratory Astrophysicist Self - Laboratory Astrophysicist See fewer	1	How the Universe Works (2010)
Jeremiah Ostriker Self - Astrophysicist (as Prof. Jeremiah Ostriker) Self - Astrophysicist (as Prof. Jeremiah Ostriker) See fewer	1	Space Junk 3D (2012)
Jürgen Blum Self - Experimental Physicist, Institute of Geophysics and Extraterrestrial Physics (as Prof. Jürgen Blum) Self - Experimental Physicist, Institute of Geophysics and Extraterrestrial Physics (as Prof. Jürgen Blum) See fewer	1	Horizon (I) (1964)
Leroy Chiao Self - Astronaut Self - Astronaut See fewer	1	Ancient Aliens (2009)
Saul Perlmutter Self - Astrophysicist Self - Astrophysicist See fewer	1	Nova (1974)
Neil Gehrels Self - Experimental Physicist Self - Experimental Physicist See fewer	1	Steps to the Future (2010)
Laurie Barge Self - Astrobiologist Self - Astrobiologist See fewer	1	Science's Greatest Mysteries (2022)
Natalie Gosnell Self - Astrophysicist Self - Astrophysicist See fewer	1	How the Universe Works (2010)
T.J. Cox Self - Theoretical Astrophysicist (as Dr. T.J. Cox) Self - Theoretical Astrophysicist (as Dr. T.J. Cox) See fewer	1	How the Universe Works (2010)
Robert Zubrin Self - Aerospace Engineer Self - Aerospace Engineer See fewer	1	Mission to Mars (2000)
Matt Penn Self - Solar Astronomer Self - Solar Astronomer See fewer	1	The Spider (2015)
Amy Reines Self - Astronomer Self - Astronomer See fewer	1	How the Universe Works (2010)
Tara Shears Self - Particle Physicist Self - Particle Physicist See fewer	1	Science's Greatest Mysteries (2022)
Dorit Donoviel Self - Biomedical Scientist Self - Biomedical Scientist See fewer	1	Space Health: Surviving in the Final Frontier
Geoff Bower Self - Astronomer Self - Astronomer See fewer	1	How the Universe Works (2010)
Dougal Jerram Self - Volcanologist Self - Volcanologist See fewer	1	How the Earth Works (2013)
Fiona Harrison Self - Astrophysicist Self - Astrophysicist See fewer	1	The Science of Interstellar (2014)
Mike Lisa Self - Particle Physicist Self - Particle Physicist See fewer	1	Limbo (II) (1999)
Brenda Frye Self - Astrophysicist Self - Astrophysicist See fewer	1	How the Universe Works (2010)
Karen Meech Self - Astronomer Self - Astronomer See fewer	1	Ancient Aliens (2009)
Woody Fischer Self - Geobiologist Self - Geobiologist See fewer	1	How the Universe Works (2010)
Richard Zeebe Self - Physicist & Oceanographer Self - Physicist & Oceanographer See fewer	1	How the Universe Works (2010)
Harold White Self - Physicist (as Harold 'Sonny' White) Self - Physicist (as Harold 'Sonny' White) See fewer	1	Aliens: The Definitive Guide (2013)
Andrew J.S. Hamilton Self - Theoretical Physicist (as Andrew Hamilton) Self - Theoretical Physicist (as Andrew Hamilton) See fewer	1	Nova (1974)
Joe Incandela Self - Particle Physicist Self - Particle Physicist See fewer	1	Nova (1974)
Stephen Mojzsis Self - Geologist (as Steve Mojzsis) Self - Geologist (as Steve Mojzsis) See fewer	1	Through the Wormhole (2010)

Name

Episodes

Known for

Phil Plait

Self - Astronomer / Self - Astronomer, Discover Magazine / Self - Phd., Astronomer Self - Astronomer / Self - Astronomer, Discover Magazine / Self - Phd., Astronomer See fewer

Arrival (II) (2016)

Michelle Thaller

Self - Astronomer / Self - Astronomer, NASA Goddard Space Flight Center / Self - Astronomer, NASA Goddard Space Flight Cente / Self - Phd., Astronomer, NASA Goddard Space Flight Center Self - Astronomer / Self - Astronomer, NASA Goddard Space Flight Center / Self - Astronomer, NASA Goddard Space Flight Cente / Self - Phd., Astronomer, NASA Goddard Space Flight Center See fewer

Spaceship Spitzer: The Slowlian Web (2008)

Richard Lintern

Self - Narrator Self - Narrator See fewer

The Bank Job (2008)

Mike Rowe

Self - Narrator / Self - Sel - Narrator Self - Narrator / Self - Sel - Narrator See fewer

Dirty Jobs (2005)

Hakeem Oluseyi

Self - Astrophysicist Self - Astrophysicist See fewer

The Stars in My Soul

James S. Bullock

Self - Astrophysicist Self - Astrophysicist See fewer

Through the Wormhole (2010)

Lawrence Krauss

Self - Cosmologist / Self - Theoretical Physicist, Arizona State University / Self - Theoretical Physicist Self - Cosmologist / Self - Theoretical Physicist, Arizona State University / Self - Theoretical Physicist See fewer

Salt and Fire (2016)

Paul M. Sutter

Self - Astrophysicist Self - Astrophysicist See fewer

UFO (2018)

Moogega Cooper

Self - Planetary Protection Engineer Self - Planetary Protection Engineer See fewer

Good Night Oppy (2022)

Dan Durda

Self - Planetary Scientist / Self - Astrophysicist / Self - Planetary Scientist, Southwest Research Institute / Self - Planetary Scientist, Scientific Consultant Self - Planetary Scientist / Self - Astrophysicist / Self - Planetary Scientist, Southwest Research Institute / Self - Planetary Scientist, Scientific Consultant See fewer

Alternate Universe: A Rescue Mission (2016)

Nina Lanza

Self - Planetary Scientist Self - Planetary Scientist See fewer

Mars: One Day on the Red Planet (2020)

Jani Radebaugh

Self - Planetary Scientist / Self - Planetary Geologist / Self - Planetary Scientist and Geologist Self - Planetary Scientist / Self - Planetary Geologist / Self - Planetary Scientist and Geologist See fewer

Horizon (I) (1964)

Erik Dellums

Self - Narrator Self - Narrator See fewer

Homicide: Life on the Street (1993)

Kevin Walsh

Self - Astronomer Self - Astronomer See fewer

Leben aus dem All (2021)

Michio Kaku

Self - Theoretical Physicist / Self - Theoretical Physicist, City University of New York / Self - Phd., Theoretical Physicist, City University of New York Self - Theoretical Physicist / Self - Theoretical Physicist, City University of New York / Self - Phd., Theoretical Physicist, City University of New York See fewer

Accidental Truth: UFO Revelations (2023)

Alex Filippenko

Self - Astrophysicist / Self - Astrophysicist, University of California: Berkeley / Self - Astrophysicis Self - Astrophysicist / Self - Astrophysicist, University of California: Berkeley / Self - Astrophysicis See fewer

The Universe (2002)

Max Tegmark

Self - Physicist / Self - Theoretical Physicist Self - Physicist / Self - Theoretical Physicist See fewer

Life 3.0

Grant Tremblay

Self - Astrophysicist Self - Astrophysicist See fewer

Universe (2021)

Amber Straughn

Self - Astrophysicist Self - Astrophysicist See fewer

Unknown: Cosmic Time Machine (2023)

Chiara Mingarelli

Self - Astrophysicist Self - Astrophysicist See fewer

Nova (1974)

Chris McKay

Self - Astrobiologist Self - Astrobiologist See fewer

The Mars Underground (2007)

Sean Carroll

Self - Theoretical Physicist / Self - Cosmologist Self - Theoretical Physicist / Self - Cosmologist See fewer

Earth to Echo (2014)

Carly Howett

Self - Planetary Scientist Self - Planetary Scientist See fewer

Solar System (2024)

Katie Freese

Self - Cosmologist / Self - Theoretical Physicist Self - Cosmologist / Self - Theoretical Physicist See fewer

Horizon (I) (1964)

Lewis Dartnell

Self - Astrobiologist Self - Astrobiologist See fewer

Size Matters (2018)

David Kipping

Self - Astronomer / Self - Astronomer, Harvard-Smithsonian Center for Astrophysics Self - Astronomer / Self - Astronomer, Harvard-Smithsonian Center for Astrophysics See fewer

Watching the End of the World (2020)

Geoff Marcy

Self - Astronomer, University of California, Berkeley / Self - Astronomer / Self - Phd., Astronomer, University of California, Berkeley Self - Astronomer, University of California, Berkeley / Self - Astronomer / Self - Phd., Astronomer, University of California, Berkeley See fewer

Extreme Universe (2010)

Albert Einstein

Self - Theoretical Physicist (archive footage) Self - Theoretical Physicist (archive footage) See fewer

Schooling the World (2010)

Konstantin Batygin

Self - Planetary Astrophysicist Self - Planetary Astrophysicist See fewer

Nova (1974)

Jessie Christiansen

Self - Astrophysicist Self - Astrophysicist See fewer

All Illusions Must Be Broken (2024)

David Grinspoon

Self - Astrobiologist / Self - Astrobiologist, Denver Museum of Nature & Science Self - Astrobiologist / Self - Astrobiologist, Denver Museum of Nature & Science See fewer

Nova Wonders (2018)

Edwin Hubble

Self - Astronomer (archive footage) Self - Astronomer (archive footage) See fewer

Kesil (2018)

Meenakshi Wadhwa

Self - Planetary Scientist Self - Planetary Scientist See fewer

Meteorite Men (2009)

Shep Doeleman

Self - Astronomer Self - Astronomer See fewer

The Edge of All We Know (2020)

Erik Asphaug

Self - Planetary Scientist Self - Planetary Scientist See fewer

Underwater Universe (2011)

Caleb Scharf

Self - Astrobiologist / Self - Astronomer Self - Astrobiologist / Self - Astronomer See fewer

One Strange Rock (2018)

Matthew O'Dowd

Self - Astrophysicist (as Matt O'Dowd) Self - Astrophysicist (as Matt O'Dowd) See fewer

PBS Space Time (2015)

Philip Hopkins

Self - Theoretical Astrophysicist Self - Theoretical Astrophysicist See fewer

Masterpiece (1971)

Heidi Hammel

Self - Astronomer / Self - Planetary Scientist / Self - Planetary Astronomer Self - Astronomer / Self - Planetary Scientist / Self - Planetary Astronomer See fewer

Wildest Weather in the Solar System (2011)

Carolyn Porco

Self - Planetary Scientist / Self - Cassini Scientist / Self - Cassini Mission Imaging Lead Self - Planetary Scientist / Self - Cassini Scientist / Self - Cassini Mission Imaging Lead See fewer

Star Trek (2009)

Peter H. Schultz

Self - Impact Specialist / Self - Impact Specialist, Brown University / Self - Impact Specialist, Brown Universiy (as Prof. Peter Schultz) Self - Impact Specialist / Self - Impact Specialist, Brown University / Self - Impact Specialist, Brown Universiy (as Prof. Peter Schultz) See fewer

Ancient Aliens (2009)

Cathy Plesko

Self - Planetary Scientist Self - Planetary Scientist See fewer

How the Earth Works (2013)

Jedidah Isler

Self - Astrophysicist Self - Astrophysicist See fewer

Mars (2016)

Amy Mainzer

Self - Astronomer / Self - NASA Jet Propulsion Laboratory Self - Astronomer / Self - NASA Jet Propulsion Laboratory See fewer

Don't Look Up (2021)

David Spergel

Self - Theoretical Physicist / Self - Astrophysicist Self - Theoretical Physicist / Self - Astrophysicist See fewer

Nova (1974)

Fritz Zwicky

Self - Astronomer (archive footage) Self - Astronomer (archive footage) See fewer

Arno Penzias

Self - Astronomer / Self - Radio Astronomer (archive footage) Self - Astronomer / Self - Radio Astronomer (archive footage) See fewer

Nova (1974)

Robert Woodrow Wilson

Self - Astronomer / Self - Radio Astronomer (archive footage) Self - Astronomer / Self - Radio Astronomer (archive footage) See fewer

Life of a Universe (2017)

Amir Caspi

Self - Solar Physicist / Self - Astrophysicist Self - Solar Physicist / Self - Astrophysicist See fewer

Gathered in Darkness (2025)

Dan Stern

Self - Astronomer Self - Astronomer See fewer

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