How the Universe Works

Name	STARmeter	Episodes	Known for
Phil Plait Himself - Astronomer / Himself - Astronomer, Discover Magazine / Himself - Phd., Astronomer Himself - Astronomer / Himself - Astronomer, Discover Magazine / Himself - Phd., Astronomer See fewer	Members only	40	Arrival (II) (2016)
Michelle Thaller Herself - Astronomer / Herself - Astronomer, NASA Goddard Space Flight Center / Herself - Astronomer, NASA Goddard Space Flight Cente / Herself - Phd., Astronomer, NASA Goddard Space Flight Center Herself - Astronomer / Herself - Astronomer, NASA Goddard Space Flight Center / Herself - Astronomer, NASA Goddard Space Flight Cente / Herself - Phd., Astronomer, NASA Goddard Space Flight Center See fewer	Members only	39	Spaceship Spitzer: The Slowlian Web (2008)
Lawrence Krauss Himself - Cosmologist / Himself - Theoretical Physicist, Arizona State University / Himself - Theoretical Physicist Himself - Cosmologist / Himself - Theoretical Physicist, Arizona State University / Himself - Theoretical Physicist See fewer	Members only	36	Vestige
Mike Rowe Himself - Narrator / Himself - Narrator (voice) / Narrator Himself - Narrator / Himself - Narrator (voice) / Narrator See fewer	Members only	34	Dirty Jobs (2005)
Richard Lintern Himself - Narrator Himself - Narrator See fewer	Members only	26	The Bank Job (2008)
Hakeem Oluseyi Himself - Astrophysicist / Himself, Astrophysicist Himself - Astrophysicist / Himself, Astrophysicist See fewer	Members only	23	The Stars in My Soul
Michio Kaku Himself - Theoretical Physicist / Himself - Theoretical Physicist, City University of New York / Himself - Phd., Theoretical Physicist, City University of New York Himself - Theoretical Physicist / Himself - Theoretical Physicist, City University of New York / Himself - Phd., Theoretical Physicist, City University of New York See fewer	Members only	22	Visions of the Future (2007)
Dan Durda Himself - Planetary Scientist / Himself - Astrophysicist / Himself - Phd., Astrophysicist / Himself - Planetary Scientist, Scientific Consultant / Himself - Planetary Scientist, Southwest Research Institute Himself - Planetary Scientist / Himself - Astrophysicist / Himself - Phd., Astrophysicist / Himself - Planetary Scientist, Scientific Consultant / Himself - Planetary Scientist, Southwest Research Institute See fewer	Members only	15	Alternate Universe: A Rescue Mission (2016)
James S. Bullock Himself - Astrophysicist Himself - Astrophysicist See fewer	Members only	15	Through the Wormhole (2010)
Moogega Cooper Herself - Planetary Protection Engineer Herself - Planetary Protection Engineer See fewer	Members only	15	King of the Nerds (2013)
Erik Dellums Narrator / Himself - Narrator Narrator / Himself - Narrator See fewer	Members only	13	Homicide: Life on the Street (1993)
Chris McKay Himself - Astrobiologist Himself - Astrobiologist See fewer	Members only	9	Mars: Making the New Earth (2009)
Jani Radebaugh Herself - Planetary Scientist / Herself - Planetary Geologist / Herself - Planetary Scientist and Geologist Herself - Planetary Scientist / Herself - Planetary Geologist / Herself - Planetary Scientist and Geologist See fewer	Members only	9	Space's Deepest Secrets (2016)
Nina Lanza Herself - Planetary Scientist Herself - Planetary Scientist See fewer	Members only	9	The Planets (2017)
Geoff Marcy Himself - Astronomer, University of California: Berkley / Himself - Astronomer / Himself - Phd., Astronomer, University of California Berkley Himself - Astronomer, University of California: Berkley / Himself - Astronomer / Himself - Phd., Astronomer, University of California Berkley See fewer	Members only	8	Horizon (1964)
Kevin Walsh Himself - Astronomer Himself - Astronomer See fewer	Members only	6	Horizon (1964)
David Grinspoon Himself - Astrobiologist / Himself - Astrobiologist, Denver Museum of Nature & Science Himself - Astrobiologist / Himself - Astrobiologist, Denver Museum of Nature & Science See fewer	Members only	5	Nova (1974)
Alex Filippenko Himself - Astrophysicist / Himself - Astrophysicist, University of California: Berkeley Himself - Astrophysicist / Himself - Astrophysicist, University of California: Berkeley See fewer	Members only	5	The Universe (2002)
Max Tegmark Himself - Theoretical Physicist / Himself - Physicist Himself - Theoretical Physicist / Himself - Physicist See fewer	Members only	5	The Universe (2007)
Peter Schultz Himself - Impact Specialist / Himself - Impact Specialist, Brown University / Himself - Impact Specialist, Brown Universiy Himself - Impact Specialist / Himself - Impact Specialist, Brown University / Himself - Impact Specialist, Brown Universiy See fewer	Members only	3	The Universe (2007)
Sean Carroll Himself - Cosmologist / Himself - Theoretical Physicist Himself - Cosmologist / Himself - Theoretical Physicist See fewer	Members only	3	The Colbert Report (2005)
Amy Mainzer Herself - Astronomer / Herself - NASA Jet Propulsion Laboratory Herself - Astronomer / Herself - NASA Jet Propulsion Laboratory See fewer	Members only	3	For the Love of Spock (2016)
David Spergel Himself - Theoretical Physicist / Himself - Astrophysicist Himself - Theoretical Physicist / Himself - Astrophysicist See fewer	Members only	3	Nova (1974)
Katie Freese Herself - Cosmologist Herself - Cosmologist See fewer	Members only	3	Horizon (1964)
Konstantin Batygin Himself - Planetary Astrophysicist Himself - Planetary Astrophysicist See fewer	Members only	3	How to Survive the End of the World (2013)
David Kipping Himself - Astronomer / Himself - Astronomer, Harvard-Smithsonian Center for Astrophysics Himself - Astronomer / Himself - Astronomer, Harvard-Smithsonian Center for Astrophysics See fewer	Members only	3	How the Universe Works (2010)
Todd Thompson Himself - Astrophysicist Himself - Astrophysicist See fewer	Members only	2	How the Universe Works (2010)
Carolyn Porco Herself - Cassini Scientist / Herself - Planetary Scientist Herself - Cassini Scientist / Herself - Planetary Scientist See fewer	Members only	2	Star Trek (2009)
Stan Love Himself - Astronaut Himself - Astronaut See fewer	Members only	2	Naked Science (2004)
Russell Schweickart Himself - Apollo 9 Astronaut, B612 Foundation Himself - Apollo 9 Astronaut, B612 Foundation See fewer	Members only	2	For All Mankind (1989)
Andrea Ghez Herself - Astronomer Herself - Astronomer See fewer	Members only	2	The Science of Interstellar (2015)
Mark Sykes Himself - Planetary Astronomer, Planetary Science Institute Himself - Planetary Astronomer, Planetary Science Institute See fewer	Members only	2	Nova (1974)
Claudia Alexander Herself - Planetary Science / Herself - Planetary Scientist, NASA Jet Propulsion Laboratory Herself - Planetary Science / Herself - Planetary Scientist, NASA Jet Propulsion Laboratory See fewer	Members only	2	The Universe (2007)
Natalie Batalha Herself - Astrophysicist, NASA Ames Research Center Herself - Astrophysicist, NASA Ames Research Center See fewer	Members only	2	Finding the New Earth (2011)
Lewis Dartnell Himself - Astrobiologist Himself - Astrobiologist See fewer	Members only	2	Size Matters (2018)
Daniel Lathrop Himself - Geophysicist Himself - Geophysicist See fewer	Members only	2	Horizon (1964)
Gilbert Collins Himself - Physicist Himself - Physicist See fewer	Members only	2	How the Universe Works (2010)
Hal Levison Himself - Planetary Scientist / Himself - Planetary Scientist, Southwest Research Institute Himself - Planetary Scientist / Himself - Planetary Scientist, Southwest Research Institute See fewer	Members only	2	The Universe (2007)
Cathy Plesko Herself - Planetary Scientist Herself - Planetary Scientist See fewer	Members only	2	Nova (1974)
Shep Doeleman Himself - Astronomer Himself - Astronomer See fewer	Members only	2	Horizon (1964)
Janna Levin Herself - Theoretical Physicist Herself - Theoretical Physicist See fewer	Members only	2	Science Club (2012)
Jedidah Isler Herself - Astrophysicist Herself - Astrophysicist See fewer	Members only	2	Mars (2016)
Carey Lisse Himself - Astronomer Himself - Astronomer See fewer	Members only	2	Naked Science (2004)
Holly Gilbert Herself - Solar Physicist Herself - Solar Physicist See fewer	Members only	1	The Universe (2007)
Mike Brown Himself - Planetary Astronomer Himself - Planetary Astronomer See fewer	Members only	1	The Suplex Duplex Complex (2017)
Alan Stern Himself - New Horizons Principal Investigator Himself - New Horizons Principal Investigator See fewer	Members only	1	Pluto: The Last Frontier (2015)
Stephen Hawking Himself - Theoretical Physicist Himself - Theoretical Physicist See fewer	Members only	1	Star Trek: The Next Generation (1987)
Steve Squyres Himself - Astronomer Himself - Astronomer See fewer	Members only	1	The Universe (2007)
Chiara Mingarelli Herself - Astrophysicist Herself - Astrophysicist See fewer	Members only	1	Doomsday: 10 Ways the World Will End (2016)
Robert P. Kirshner Himself - Theoretical Physicist Himself - Theoretical Physicist See fewer	Members only	1	The Universe (2007)
Michael Strauss Himself - Astrophysicist Himself - Astrophysicist See fewer	Members only	1	How the Universe Works (2010)
Carlos Frenk Himself - Cosmologist Himself - Cosmologist See fewer	Members only	1	Horizon (1964)
Amanda Hendrix Herself - Planetary Scientist Herself - Planetary Scientist See fewer	Members only	1	Like a Country Song (2014)
Andrew Kirk Himself - Plasma Physicist Himself - Plasma Physicist See fewer	Members only	1	How the Universe Works (2010)
Gentry Lee Himself - Space Flight Engineer Himself - Space Flight Engineer See fewer	Members only	1	The Box (I) (2009)
Suzanne Staggs Herself - Physicist Herself - Physicist See fewer	Members only	1	How the Universe Works (2010)
Laura Danly Herself - Astronomer, Griffith Observatory Herself - Astronomer, Griffith Observatory See fewer	Members only	1	The Universe (2007)
Robert Hurt Himself - Astronomer, Caltech / IPAC Himself - Astronomer, Caltech / IPAC See fewer	Members only	1	Robot Astronomy Talk Show (2008)
David Jewitt Himself - Astronomer Himself - Astronomer See fewer	Members only	1	Horizon (1964)
John Spencer Himself - New Horizons Co-Investigator Himself - New Horizons Co-Investigator See fewer	Members only	1	Woman in Motion
Bryan Gaensler Himself - Astronomer, Center for All-Sky Astrophysics Himself - Astronomer, Center for All-Sky Astrophysics See fewer	Members only	1	The Panel (1998)
Scott Kenyon Himself - Astrophysicist, Smithsonian Astrophysical Observatory Himself - Astrophysicist, Smithsonian Astrophysical Observatory See fewer	Members only	1	Born & Raised (2012)
Adam Showman Himself - Planetary Scientist, University of Arizona Himself - Planetary Scientist, University of Arizona See fewer	Members only	1	The Universe (2007)
Les Johnson Himself - Advanced Propulsion Technologist Himself - Advanced Propulsion Technologist See fewer	Members only	1	How to Survive the End of the World (2013)
Taylor Wilson Himself - Nuclear Scientist Himself - Nuclear Scientist See fewer	Members only	1	Nova (1974)
Andrew Benson Himself - Theoretical Astrophysicist Himself - Theoretical Astrophysicist See fewer	Members only	1	How the Universe Works (2010)
Monica Dunford Herself - ATLAS Engineer Herself - ATLAS Engineer See fewer	Members only	1	Particle Fever (2013)
William Hartmann Himself - Planetary Scientist Himself - Planetary Scientist See fewer	Members only	1	Future Flight (1987)
Eve Stenson Herself - Astrophysicist Herself - Astrophysicist See fewer	Members only	1	How the Universe Works (2010)
Stan Woosley Himself - Astrophysicist Himself - Astrophysicist See fewer	Members only	1	Horizon (1964)
Juna Kollmeier Herself - Astrophysicist, Carnegie Observatories Herself - Astrophysicist, Carnegie Observatories See fewer	Members only	1	Space's Deepest Secrets (2016)
Dante Lauretta Himself - Cosmochemist, University of Arizona Himself - Cosmochemist, University of Arizona See fewer	Members only	1	Landing on a Comet: Rosetta Mission (2014)
Alan Guth Himself - Theoretical Physicist Himself - Theoretical Physicist See fewer	Members only	1	Horizon (1964)
Jason Wright Himself - Astronomer Himself - Astronomer See fewer	Members only	1	How the Universe Works (2010)
Paul Drake Himself - Physicist Himself - Physicist See fewer	Members only	1	How the Universe Works (2010)
Dan Long Himself - SDSS Operations Engineer Himself - SDSS Operations Engineer See fewer	Members only	1	How the Universe Works (2010)
Dan Coe Himself - Astrophysicist, Space Telescope Science Institute Himself - Astrophysicist, Space Telescope Science Institute See fewer	Members only	1	How the Universe Works (2010)
Julie McEnery Herself - Astrophysicist Herself - Astrophysicist See fewer	Members only	1	How the Universe Works (2010)
Risa Wechsler Herself - Astrophysicist Herself - Astrophysicist See fewer	Members only	1	Space's Deepest Secrets (2016)
Edo Berger Himself - Astronomer Himself - Astronomer See fewer	Members only	1	Nova (1974)
Jena Meinecke Herself - Laboratory Astrophysicist Herself - Laboratory Astrophysicist See fewer	Members only	1	How the Universe Works (2010)
Arpita Roy Herself - Astronomer Herself - Astronomer See fewer	Members only	1	How the Universe Works (2010)
Jeremiah Ostriker Himself - Astrophysicist Himself - Astrophysicist See fewer	Members only	1	Space Junk 3D (2012)
Jürgen Blum Himself - Experimental Physicist, Institute of Geophysics and Extraterrestrial Physics Himself - Experimental Physicist, Institute of Geophysics and Extraterrestrial Physics See fewer	Members only	1	Horizon (1964)
Leroy Chiao Himself - Astronaut Himself - Astronaut See fewer	Members only	1	Jeopardy! (1984)
Neil Gehrels Himself - Experimental Physicist Himself - Experimental Physicist See fewer	Members only	1	How the Universe Works (2010)
Saul Perlmutter Himself - Astrophysicist Himself - Astrophysicist See fewer	Members only	1	Horizon (1964)
Dean W. Pesnell Himself - Solar Physicist Himself - Solar Physicist See fewer	Members only	1	Nova (1974)
Laurie Barge Herself - Astrobiologist Herself - Astrobiologist See fewer	Members only	1	How the Universe Works (2010)
Natalie Gosnell Herself - Astrophysicist Herself - Astrophysicist See fewer	Members only	1	How the Universe Works (2010)
T.J. Cox Himself - Theoretical Astrophysicist Himself - Theoretical Astrophysicist See fewer	Members only	1	How the Universe Works (2010)
Dorit Donoviel Herself - Biomedical Scientist Herself - Biomedical Scientist See fewer	Members only	1	Roadtrip Nation (2004)
Matt Penn Himself - Solar Astronomer Himself - Solar Astronomer See fewer	Members only	1	The Spider (2015)
Amy Reines Herself - Astronomer Herself - Astronomer See fewer	Members only	1	How the Universe Works (2010)
Tara Shears Herself - Particle Physicist Herself - Particle Physicist See fewer	Members only	1	Naked Science (2004)
Robert Zubrin Himself - Aerospace Engineer Himself - Aerospace Engineer See fewer	Members only	1	Mission to Mars (2000)
Geoff Bower Himself - Astronomer Himself - Astronomer See fewer	Members only	1	How the Universe Works (2010)
Michael Rampino Himself - Geologist Himself - Geologist See fewer	Members only	1	Horizon (1964)
Brenda Frye Herself - Astrophysicist Herself - Astrophysicist See fewer	Members only	1	How the Universe Works (2010)
Fiona Harrison Herself - Astrophysicist Herself - Astrophysicist See fewer	Members only	1	The Science of Interstellar (2015)
Dougal Jerram Himself - Volcanologist Himself - Volcanologist See fewer	Members only	1	How the Earth Works (2013)
John Asher Johnson Himself - Astronomer Himself - Astronomer See fewer	Members only	1	Nova (1974)
Mike Lisa Himself - Particle Physicist Himself - Particle Physicist See fewer	Members only	1	Limbo (III) (2004)
Woody Fischer Himself - Geobiologist Himself - Geobiologist See fewer	Members only	1	How the Universe Works (2010)
Karen Meech Herself - Astronomer Herself - Astronomer See fewer	Members only	1	How the Universe Works (2010)
Richard Zeebe Himself - Physicist & Oceanographer Himself - Physicist & Oceanographer See fewer	Members only	1	How the Universe Works (2010)
Harold White Himself - Physicist Himself - Physicist See fewer	Members only	1	Aliens: The Definitive Guide (2013)
Andrew J.S. Hamilton Himself - Theoretical Physicist Himself - Theoretical Physicist See fewer	Members only	1	Nova (1974)
Joe Incandela Himself - Particle Physicist Himself - Particle Physicist See fewer	Members only	1	Particle Fever (2013)
Stephen Mojzsis Himself - Geologist Himself - Geologist See fewer	Members only	1	Through the Wormhole (2010)
Heather A. Knutson Herself - Assistant Professor of Planetary Science Herself - Assistant Professor of Planetary Science See fewer	Members only	1	The Universe (2007)
Ben Oppenheimer Himself - Phd., Astronomer Himself - Phd., Astronomer See fewer	Members only	1	How the Universe Works (2010)
Evgenya Shkolnik Herself - Assistant Professor of Planetary Science Herself - Assistant Professor of Planetary Science See fewer	Members only	1	How the Universe Works (2010)
Kevian Stassun Himself - Phd., Physics and Astronomy Himself - Phd., Physics and Astronomy See fewer	Members only	1	How the Universe Works (2010)
Seth Shostak Himself - Astronomer Himself - Astronomer See fewer	Members only	1	The Day the Earth Stood Still (2008)
Erik Asphaug Himself - Planetary Scientist Himself - Planetary Scientist See fewer	Members only	1	Underwater Universe (2011)
Mike Brown Himself - Astronomer Himself - Astronomer See fewer	Members only	1	How the Universe Works (2010)
Marina Brozovic Herself - Planetary Scientist Herself - Planetary Scientist See fewer	Members only	1	Nova (1974)
Greg Leonard Himself - Astronomer Himself - Astronomer See fewer	Members only	1	Home Road (2017)
Paul M. Sutter Himself - Astrophysicist Himself - Astrophysicist See fewer	Members only	1	UFO (2018)
Grant Tremblay Himself - Astrophysicist Himself - Astrophysicist See fewer	Members only	1	Space's Deepest Secrets (2016)

Name

STARmeter

Episodes

Known for

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

Members only

Arrival (II) (2016)

Michelle Thaller

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

Members only

Spaceship Spitzer: The Slowlian Web (2008)

Lawrence Krauss

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

Members only

Vestige

Mike Rowe

Himself - Narrator / Himself - Narrator (voice) / Narrator Himself - Narrator / Himself - Narrator (voice) / Narrator See fewer

Members only

Dirty Jobs (2005)

Richard Lintern

Himself - Narrator Himself - Narrator See fewer

Members only

The Bank Job (2008)

Hakeem Oluseyi

Himself - Astrophysicist / Himself, Astrophysicist Himself - Astrophysicist / Himself, Astrophysicist See fewer

Members only

The Stars in My Soul

Michio Kaku

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

Members only

Visions of the Future (2007)

Dan Durda

Himself - Planetary Scientist / Himself - Astrophysicist / Himself - Phd., Astrophysicist / Himself - Planetary Scientist, Scientific Consultant / Himself - Planetary Scientist, Southwest Research Institute Himself - Planetary Scientist / Himself - Astrophysicist / Himself - Phd., Astrophysicist / Himself - Planetary Scientist, Scientific Consultant / Himself - Planetary Scientist, Southwest Research Institute See fewer

Members only

Alternate Universe: A Rescue Mission (2016)

James S. Bullock

Himself - Astrophysicist Himself - Astrophysicist See fewer

Members only

Through the Wormhole (2010)

Moogega Cooper

Herself - Planetary Protection Engineer Herself - Planetary Protection Engineer See fewer

Members only

King of the Nerds (2013)

Erik Dellums

Narrator / Himself - Narrator Narrator / Himself - Narrator See fewer

Members only

Homicide: Life on the Street (1993)

Chris McKay

Himself - Astrobiologist Himself - Astrobiologist See fewer

Members only

Mars: Making the New Earth (2009)

Jani Radebaugh

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

Members only

Space's Deepest Secrets (2016)

Nina Lanza

Herself - Planetary Scientist Herself - Planetary Scientist See fewer

Members only

The Planets (2017)

Geoff Marcy

Himself - Astronomer, University of California: Berkley / Himself - Astronomer / Himself - Phd., Astronomer, University of California Berkley Himself - Astronomer, University of California: Berkley / Himself - Astronomer / Himself - Phd., Astronomer, University of California Berkley See fewer

Members only

Horizon (1964)

Kevin Walsh

Himself - Astronomer Himself - Astronomer See fewer

Members only

Horizon (1964)

David Grinspoon

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

Members only

Nova (1974)

Alex Filippenko

Himself - Astrophysicist / Himself - Astrophysicist, University of California: Berkeley Himself - Astrophysicist / Himself - Astrophysicist, University of California: Berkeley See fewer

Members only

The Universe (2002)

Max Tegmark

Himself - Theoretical Physicist / Himself - Physicist Himself - Theoretical Physicist / Himself - Physicist See fewer

Members only

The Universe (2007)

Peter Schultz

Himself - Impact Specialist / Himself - Impact Specialist, Brown University / Himself - Impact Specialist, Brown Universiy Himself - Impact Specialist / Himself - Impact Specialist, Brown University / Himself - Impact Specialist, Brown Universiy See fewer

Members only

The Universe (2007)

Sean Carroll

Himself - Cosmologist / Himself - Theoretical Physicist Himself - Cosmologist / Himself - Theoretical Physicist See fewer

Members only

The Colbert Report (2005)

Amy Mainzer

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

Members only

For the Love of Spock (2016)

David Spergel

Himself - Theoretical Physicist / Himself - Astrophysicist Himself - Theoretical Physicist / Himself - Astrophysicist See fewer

Members only

Nova (1974)

Katie Freese

Herself - Cosmologist Herself - Cosmologist See fewer

Members only

Horizon (1964)

Konstantin Batygin

Himself - Planetary Astrophysicist Himself - Planetary Astrophysicist See fewer

Members only

How to Survive the End of the World (2013)

David Kipping

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

Members only

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How the Universe Works (2010– )

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