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Looking for Life in All the Wrong Places: The Atacama, NASA Viking Experiments, and Salts
Manage episode 447469427 series 3561088
A tartalmat a SETI Institute biztosítja. Az összes podcast-tartalmat, beleértve az epizódokat, grafikákat és podcast-leírásokat, közvetlenül a SETI Institute vagy a podcast platform partnere tölti fel és biztosítja. Ha úgy gondolja, hogy valaki az Ön engedélye nélkül használja fel a szerzői joggal védett művét, kövesse az itt leírt folyamatot https://hu.player.fm/legal.
In 1976, NASA's two Viking spacecraft touched down on Mars, becoming the first successful landers on the red planet. On board Viking 1, the craft carried several biological experiments to search for life. While most scientists consider the results of those experiments to be negative for Martian life, one experiment gave a positive result. The resulting controversy has spanned decades, with numerous scientists weighing in. Now, Dirk Schulze-Makuch from the Centre of Astronomy and Astrophysics (ZAA) at Technische Universität Berlin questions how those experiments were performed in light of what we know of extremely dry environments here on Earth. These Mars analogs, such as the Atacama desert in Chile, show that while microbes can survive in harsh conditions, too much water becomes a problem. And those Viking experiments may have involved too much water. Join Dr. Franck Marchis as he discusses Dr. Schulze-Makuch's recent Nature Astronomy article and how we should follow the salts instead of the water. (Recorded 28 October 2024.)
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