All Episodes

June 18, 2023 8 mins
Dirk Schulze-Makuch - How The “Face On Mars” And Other False Positives Impact The Search For Alien Life

We may have discovered alien life already but rejected the evidence too quickly because it seemed false at first glance.

Key Takeaways
  • Perhaps the most famous "evidence" of life on Mars came from a photograph that supposedly depicted a face on the Red Planet. It was subsequently shown to be nothing but a mountain.
  • The Viking Life Detection experiments and Martian meteorite ALH84001 were both thought to prove the existence of life on Mars, but these were also false positives.
  • Once a claim is judged to be a false positive, it’s difficult to change people’s minds, even if new evidence comes along.
Mark as Played

Advertise With Us

Popular Podcasts

Dateline NBC

Dateline NBC

Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com

24/7 News: The Latest

24/7 News: The Latest

The latest news in 4 minutes updated every hour, every day.

Therapy Gecko

Therapy Gecko

An unlicensed lizard psychologist travels the universe talking to strangers about absolutely nothing. TO CALL THE GECKO: follow me on https://www.twitch.tv/lyleforever to get a notification for when I am taking calls. I am usually live Mondays, Wednesdays, and Fridays but lately a lot of other times too. I am a gecko.

Music, radio and podcasts, all free. Listen online or download the iHeart App.

Connect

© 2025 iHeartMedia, Inc.