#SETI #aliens #astrobiology What is the "reality" of alien life? Avi Loeb, Chairman of The Harvard Astronomy Department, and Director of the Galileo Project, has strong opinions! Maybe we're just another civilization that is about to be wiped out when our sun dies. Maybe galactic timescales are too long for us to encounter alien civilizations that have survived. Maybe we just aren't looking in the right way for physical evidence. Watch the full conversation with Garry Nolan https://youtube.com/live/TezZ65_7MaY Avi Loeb is an astrophysicist at Harvard, the director of the Galileo Project, and the author of Extraterrestrial. In 1993 he moved to Harvard University where he was tenured three years later. He is now the Frank B. Baird Jr. Professor of Science and former chair of the department. In his book Extraterrestrial, Loeb takes readers inside the thrilling story of the first interstellar visitor to be spotted in our solar system. He outlines his controversial theory and its profound implications: for science, for religion, and for the future of our species and our planet. Find Avi: https://www.cfa.harvard.edu/~loeb/ Professor Loeb is Director of The Galileo Project which has three major avenues of research: 1. Obtain High-resolution, Multi-detector UAP Images 2. Search for and In-Depth Research on ‘Oumuamua-like Interstellar Objects 3. Search for Potential ETC Satellites https://projects.iq.harvard.edu/galileo @galileoproject103 Join this channel to get access to perks: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join ? Watch my most popular videos:? Neil Turok https://www.youtube.com/watch?v=Dt5cFLN65fI Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Eric Weinstein vs. Stephen Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Noam Chomsky: https://youtu.be/Iaz6JIxDh6Y?sub_confirmation=1 Sabine Hossenfelder: https://youtu.be/g00ilS6tBvs Avi Loeb: https://youtu.be/N9lUceHsLRw Follow me to ask questions of my guests: ?‍♂️ Twitter: https://twitter.com/DrBrianKeating ? Subscribe https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list; just click here http://briankeating.com/mailing_list ✍️ Detailed Blog posts here: https://briankeating.com/blog.php ?️ Listen on audio-only platforms: https://briankeating.com/podcast A production of http://imagination.ucsd.edu/ ... https://www.youtube.com/watch?v=Wox-oA51rhg

Lisa Kaltenegger is the founding director of the Carl Sagan Institute at Cornell. In 2009, Kaltenegger realized that a telescope like JWST would see only tiny signals from atmospheric gases during each transit, so in order to achieve any statistical certainty, astronomers would need to observe dozens or even hundreds of transits, which would take years. Acting on this insight, astronomers started to seek Earths in close orbits around dimmer, colder red dwarf stars, where atmospheric signals will be less drowned out by starlight and transits repeat more frequently. In 2017, astronomers announced the discovery of seven rocky planets around a red dwarf star called TRAPPIST-1. Then in September, the SPECULOOS-2 system emerged as a backup. These stars are close. They’re dim and red. They each have multiple rocky planets that transit. And as of the summer, the JWST is up and running even better than expected. It will spend a sizable fraction of the next five years staring hard at these messy globes of rock and chemicals spinning around their strange stars. For theoreticians like Kaltenegger who went from daydreaming of alternate Earths to churning out predictions about their atmospheric chemistry, decades of anticipation have given way to a slow fade-in of squiggly spectra on computer monitors. The goal at the time was to compare spectra from rocky, temperate planets to what Earth’s spectrum would look like from far away, seeking conspicuous signals like a surplus of oxygen due to widespread photosynthesis. Kaltenegger’s objection was that, for the first 2 billion years of Earth’s existence, its atmosphere had no oxygen. Then it took another billion years for oxygen to build up to high levels. And this biosignature hit its highest concentration not in Earth’s present-day spectrum, but during a short window in the late Cretaceous Period when proto-birds chased giant insects through the skies. Without a good theoretical model for how Earth’s own spectrum has changed, Kaltenegger feared, the big planet-finding missions could easily miss a living world that didn’t match a narrow temporal template. She needed to envision Earth as an exoplanet evolving through time. To do this, she adapted one of the first global climate models, developed by the geoscientist James Kasting, which still includes references to the 1970s magnetic-tape era it originated in. Kaltenegger developed this code into a bespoke tool that can analyze not only Earth through time but also radically alien scenarios, and it remains her lab’s workhorse. From the Earth-through-time study on, many of Kaltenegger’s papers follow the same pattern. Her trick is to gather up what we know of Earth’s own richness in her theoretical palm, then spin it like a basketball along different axes. What if we rewound it in time? What if an alien Earth had different geology? A different atmosphere? An all-ocean surface? What if it circled a red sun, or the blazing-hot cinder of a white dwarf? In 2010, for example, she found that the then-upcoming JWST should be able to infer the presence of gases from a volcanic eruption like the 1991 Mount Pinatubo eruption in the Philippines, if a similar event occurred on an exoplanet. Or it could identify worlds ruled not by the cycling of carbon between the surface and atmosphere (as on Earth), but instead by sulfur released by volcanoes and then broken down by starlight. Follow Lisa https://twitter.com/KalteneggerLisa Join the Carl Sagan Inst: https://carlsaganinstitute.cornell.edu Read How to Characterize Habitable Worlds and Signs of Life https://www.annualreviews.org/doi/abs/10.1146/annurev-astro-082214-122238 Join this channel to get access to perks: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join ? Watch my most popular videos:? Neil Turok https://www.youtube.com/watch?v=Dt5cFLN65fI Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Eric Weinstein vs. Stephen Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Noam Chomsky: https://youtu.be/Iaz6JIxDh6Y?sub_confirmation=1 Sabine Hossenfelder: https://youtu.be/g00ilS6tBvs Avi Loeb: https://youtu.be/N9lUceHsLRw Follow me to ask questions of my guests: ?‍♂️ Twitter: https://twitter.com/DrBrianKeating ? Subscribe https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list; just click here http://briankeating.com/mailing_list ✍️ Detailed Blog posts here: https://briankeating.com/blog.php ?️ Listen on audio-only platforms: https://briankeating.com/podcast A production of http://imagination.ucsd.edu/ ... https://www.youtube.com/watch?v=IEwUsUuG6oU

➡️ Watch the full episode: https://youtu.be/qzWOhKUuPao — Additional resources: ? When the Heavens Went on Sale by Ashlee Vance: https://a.co/d/7JIhN4X ? Watch my most popular videos: Neil Turok https://www.youtube.com/watch?v=Dt5cFLN65fI Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Eric Weinstein vs. Stephen Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sir Roger Penrose: https://youtu.be/AMuqyAvX7Wo Sabine Hossenfelder: https://youtu.be/g00ilS6tBvs Avi Loeb: https://youtu.be/N9lUceHsLRw ➡️ Follow me on your fav platforms: ✖️ Twitter: https://twitter.com/DrBrianKeating ? YouTube: https://www.youtube.com/DrBrianKeating?sub_confirmation=1 ? Join my mailing list: https://briankeating.com/mailing_list ✍️ Check out my blog: https://briankeating.com/blog.php ?️ Follow my podcast: https://briankeating.com/podcast Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to subscribe so you never miss an episode! #intotheimpossible #briankeating #ashleevance ... https://www.youtube.com/watch?v=-UK4zhkDx5g

Tom DeLonge started To The Stars Academy, a multi-pronged approach to address issues related to UFO/UAPs. TTSA has several divisions including: Science & Technology Division wherein TTSA collects documents and physical materials from public and private sources related to the UAP phenomena to study it and then transitions the transformative technologies behind it to wider applications of public benefit. The company’s consulting and research arm features top former officials from the Pentagon, CIA, Department of Defense, and Lockheed Martin Skunkworks. S.C.O.U.T. & V.A.U.L.T. : division aims to be the world’s most comprehensive intelligence tool for collecting, analyzing, and reporting unidentified aerial phenomena. Anyone will be able to instantly tap into the database via the S.C.O.U.T. mobile app to contribute and access real-time information on the phenomena globally. The VAULT: will use proprietary AI to find patterns in data from S.C.O.U.T. and cross-reference information from other global databases to find answers in places we couldn’t see before. Entertainment Division: Spanning film, television, books, music, art, and merchandise, To The Stars Entertainment Division creates and licenses original intellectual property by award-winning creators. Fans of TTSA’s vast entertainment brands find themselves immersed in exciting stories that inspire a new understanding and appreciation for the profound mysteries of our universe. Jim Semivan retired in 2007 after a 25-year career in the Central Intelligence Agency’s National Clandestine Service. At the time of his retirement he was a member of the CIA’s Senior Intelligence Service. Jim served multiple overseas and domestic tours along with senior management positions in CIA headquarters. He is the recipient of the Agency's Career Intelligence Medal. Curt hosts @Theories of Everything with Curt Jaimungal . Please subscribe to his channel! Please join my mailing list to get resources and enter giveaways to win a FREE copy of my book Losing the Nobel Prize: http://briankeating.com/mailing_list.php ? ? ? Watch my most popular videos? ? Jill Tarter https://youtu.be/O9K9OBd3vHk Seth Shostak https://www.youtube.com/watch?v=IZ9wxV_MWVI Mick West: https://www.youtube.com/watch?v=HJtTgIKDUZw Sarah Scoles: https://youtu.be/apVKobWigMw Sara Seager Venus Life: https://youtu.be/QPsEDoOTU6k Noam Chomsky: https://youtu.be/Iaz6JIxDh6Y Frank Wilczek https://youtu.be/3z8RqKMQHe0 Weinstein and Wolfram https://youtu.be/OI0AZ4Y4Ip4 Sheldon Glashow: https://youtu.be/a0_iaWgxQtA Michael Saylor The Physics of Bitcoin https://youtu.be/CaN_CDKqXOg Sir Roger Penrose, Nobel Prize winner: Singularities Real? https://youtu.be/57SMQj3lOm0 Sabine Hossenfelder: https://youtu.be/V6dMM2-X6nk Step ... https://www.youtube.com/watch?v=OBSdg3nwxoo