Public Speaking and Appearances

Marc has spoken about his writings on television, on the radio, and at various bookstores and venues. Email to book an event for book clubs, signings, podcasts, or shows.

Coast to Coast AM with George Noory
June 25, 2024

Xploration Outer Space

“Discovering Mars” and “Myths and Mysteries”
Season 8, May 2024

Peculiar Book Club
May 9, 2024

Fade to Black with Jimmy Church
Dec. 14, 2023

Fascinating Nouns
Dec. 12, 2023

Planetary Society Book Club Q&A
November 30, 2023

Coast to Coast AM with George Knapp
Nov. 19, 2023

Coast to Coast AM with Cheryll Jones
Oct. 26, 2023

That UFO Podcast
Oct. 19, 2023

Alien Theorists Theorizing
Oct. 2, 2023

Casual Space, Episode 198
September 2023

The UnXplained
”The Weird Wild West” / Season 4, Episode 20
The History Channel
December 2, 2022

Grey Towers, Milford, PA
November 13, 2022

Halloween Fright Night, HistFest
October 31, 2022

Peculiar Book Club
October 27, 2022

Stardust Festival, Cochrane, Ontario
August 4, 2022

Humans to Mars Summit, Washington, DC
May 18, 2022

Coney Island’s Congress of Curious Peoples
Keynote Speaker, April 1, 2022

New York Comic Con 2021
Panelist: “Greater Than Fiction: Real Life Stories of Tragedy and Triumph!”
Oct. 10, 2021

Coast to Coast AM with George Noory
2021, 2020, 2015, 2006

Hysteria 51 - Episode 258
September 27, 2021

Last Podcast on the Left
August 17, 2021

Weird Tales with Charles Christian
Episode 165, May 2021

Midnight Society with Tim Weisberg
May 4, 2021
August 30, 2021

Jobsolete Podcast
Featured expert on Season 1, Episode 11: “Stone Eaters”, March 2021

Planetfest '21
"A Conversation: Why I Make Up Stories About Mars" discussion panel with Kim Stanley Robinson, Andy Weir, and Mat Kaplan, February 2021

Explore Mars Webinar
A Conversation about The Big Book of Mars with Joe Cassady (Executive Director, Space, Aerojet Rocketdyne), February 2021

The Other Side of Midnight with Richard Hoagland
August 9, 2020

Edge of Reality Radio with Lee Speigel
July 9, 2020

Project Archivist
Episode 330 (Sept. 2020) and Episode 280 (November 2018)

The Stuph File Program
Monthly weird history segment, Sept. 2020 - Present

Morbid Anatomy Museum Festival of Arcane Knowledge
May 5, 2019

McDaniel College
Lecture in conjunction with the Visions of the Circus exhibit, October 2017

Symposium Series
The Science of Sideshow, May 2017

Mütter Museum of the College of Physicians of Philadelphia
Oct. 2016

Brooklyn Historical Society
April 2016

Coney Island Museum
Dec. 2015

Morbid Anatomy Museum
2015 (Aug, Nov.)

Barnes & Noble
(Multiple locations), 2010, 2015

The Travel Channel's Mysteries at the Museum
2014: "Missile Mailbox"

The Maury Show
2010

The Jay Thomas Show
2010

The Brian Lehrer Show - WNYC
Jan. 1, 2003 and Dec. 10, 2002

CNN with Jeanne Moos
2002

MSNBC
The Jerry Nachman Show, 2002