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Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
259 | Adam Frank on What Aliens Might Be Like
Dec 11, 2023
01:18:30
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Astrophysicist Adam Frank discusses the search for extraterrestrial life and the changing perspectives of the scientific community. They explore the chances of finding life at different technological levels and examine the nature of alien civilizations and their energy usage. The Fermi paradox, the potential of AI in discovering galaxies, and the implications of signaling and contact with extraterrestrial life are also discussed.
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- Astrobiologists are using biosignatures and techno signatures to search for life on other worlds.
- The Fermi Paradox raises questions about the existence of advanced civilizations in the universe.
Deep dives
Looking for Life: New Frontiers in Astrobiology
Astrobiologists are exploring new ways to search for life beyond Earth. With the advancement of technology, scientists are now able to detect biosignatures and techno signatures from distant exoplanets. Biosignatures like atmospheric oxygen or network properties of chemical networks can indicate the presence of life. Techno signatures, on the other hand, can include the detection of chlorofluorocarbons or artificial illumination. These new approaches allow researchers to look for signs of life or civilization without relying on explicit attempts at communication. NASA is funding various programs in astrobiology, and the future looks promising with the development of instruments like the James Webb Space Telescope. However, the search for extraterrestrial life remains a complex and uncertain endeavor, with many possible outcomes and unanswered questions.
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