In 1947, aliens intent on visiting our planet are said to have crashed into the New Mexico desert near Roswell. According to several witnesses, the U.S. military not only recovered the saucer debris (together with some dead, extraterrestrial passengers), but secreted away the evidence. There are also claims that the crumpled alien technology was reverse-engineered, providing us with hi-tech products we otherwise wouldn’t have.

Could it be true? Most scientists have a one-word reaction to Roswell: “Phooey!” They point to a perfectly reasonable and historically supported non-extraterrestrial explanation for the debris recovered in New Mexico.

In this special Skeptical Sunday report, Seth and Molly travel to Roswell to check out the fabled city which, even after sixty years, is still best known for this putative interstellar fender-bender.

Also, the alien invasion that’s underway: how exotic plant and animal species are threatening ecosystems nationwide.

Guests:

  • Thomas Stohlgren – Ecologist, National Institute of Invasive Species Science, U.S. Geological Survey, Fort Collins, Colorado
  • Stan Friedman – Nuclear physicist
  • Dennis Verstynen – Staff member at the National Atomic Musuem in Albuquerque and a retired U.S. history teacher
  • John Taschner – Retired from the U.S. Air Force and a former health physicist from Los Alamos National Laboratory

Podcast also available on PocketCasts, SoundCloud, Spotify, Google Podcasts, Apple Podcasts, and RSS.

2026 Webby Award Nominee
for our three part series on the 20th anniversary of Hurricane Katrina

Big Picture Science is an immersive radio show and podcast that reveals the unexpected connections in science.

Our Skeptic Check episodes take a critical look at extraordinary science claims and pseudoscience.

Don’t settle for a science snapshot. Get the big picture. 

Hosted By

Molly Bentley Executive Producer and Co-Host, Big Picture Science  

Seth Shostak Producer and Co-Host, Big Picture Science
Senior Astronomer, SETI Institute

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