EXTRATERRESTRIAL LIFE

In this week's questions show, I explain why there are separate challenges for finding life in both the Solar System and in the Milky Way. Can we use water as a propulsion system in space? Will there be interferometer telescopes launched into space? 00:00 Start 00:22 Easier to find life in the Solar System or Milky Way? 05:13 Could an exosuit simulate gravity? 06:36 Could you use water as a propulsion system? 08:28 Could you have space-based interferometry? 13:02 Are the moons of Jupiter in severe radiation? 14:19 Is anyone working on spinning habitats? 18:05 What about Amazon's satellite constellations? 22:19 Can you have rogue planets without a star? 25:52 How do you stop a lightsail? 27:22 How far will James Webb see? 31:35 Could gravitational lensing mess up the CMB? 34:27 Will the Titan Dragonfly visit the seas? 37:29 What's my astrophotography setup? 38:55 What type of radiation is around Jupiter? 39:53 Is Blue Origin a serious competitor to SpaceX? 44:22 What telescopes do I have? 44:47 If Earth was locked to the Sun, what would happen to the gravity? 45:23 Will there be a telescope on the Moon? 46:17 Would we know where a WoW signal is coming from? 🚀 OUR WEBSITE: ════════════════════════════════════ https://www.universetoday.com/ 🚀 PODCAST LINKS: ════════════════════════════════════ RSS: https://universetoday.com/audio iTunes: https://universetoday.com/itunes Spotify: https://universetoday.com/spotify 🚀 EMAIL NEWSLETTER: ════════════════════════════════════ Read by 50,000 people every Friday. Written by Fraser. No ads. Subscribe Free: https://universetoday.com/newsletter 🚀 OTHER PODCASTS: ════════════════════════════════════ Weekly Space Hangout: Weekly news roundup with Fraser, special guests, and other space journalists. RSS: https://www.universetoday.com/feed/wshaudio/ iTunes: https://podcasts.apple.com/ca/podcast/weekly-space-hangout-audio/id836926769 YouTube: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/ Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay. RSS: https://astronomycast.libsyn.com/rss/ iTunes: https://podcasts.apple.com/ca/podcast/astronomy-cast/id191636169?mt=2 YouTube: https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg 🚀 JOIN OUR COMMUNITY: ════════════════════════════════════ Patreon: https://patreon.com/universetoday 🚀 OTHER SOCIAL MEDIA: ════════════════════════════════════ Twitter: https://twitter.com/fcain Twitter: https://twitter.com/universetoday Facebook: https://facebook.com/universetoday Instagram: https://instagram.com/universetoday Twitch: https://twitch.tv/fcain 🚀 CONTACT FRASER: ════════════════════════════════════ Email: [email protected] 🚀 LICENSE: ════════════════════════════════════ Creative Commons Attribution 4.0 International (CC BY 4.0) You are free to use my work for any purpose you like, just mention me as the source and link back to this video.

An exploration of ten possible anti-great filters that might make life in the universe more common than we might think. https://www.patreon.com/johnmichaelgodier Music: Cylinder Eight by Chris Zabriskie is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/ Source: http://chriszabriskie.com/cylinders/ Artist: http://chriszabriskie.com/ Cylinder Five by Chris Zabriskie is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/ Source: http://chriszabriskie.com/cylinders/ Artist: http://chriszabriskie.com/ Decisions by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/ Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100756 Artist: http://incompetech.com/

The first 1000 people to use the link will get a free trial of Skillshare Premium Membership: https://skl.sh/isaacarthur02211 Science Fiction often shows us aliens and human living among one another in space, but how realistic are such portrayals and what sort of accommodation would extraterrestrials need for their environments? We will also ask if humans and aliens could live together, possibly even marry and have hybrid offspring. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version: https://soundcloud.com/isaac-arthur-148927746/multi-species-civilizations-co-alien-habitats Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/multi-species-civilizations-co-alien-habitats-narration-only Credits: Multi-Species Civilizations & Co-Alien Habitats Science & Futurism with Isaac Arthur Episode 277a; February 14, 2021 Produced, Written, and Narrated by Isaac Arthur Editors: Jason Burbank Jerry Guern https://www.youtube.com/watch?v=mxgArWbEhZg Keith Blockus S. Kopperud PhoneticFailure Cover Art: Jakub Grygier https://www.artstation.com/jakub_grygier Graphics: Bryan Versteeg https://www.spacehabs.com Fishy Tree https://www.deviantart.com/fishytree/ Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana Ken York of YD Visual https://www.facebook.com/YDVisual/ Sergio Botero https://www.artstation.com/sboterod?fref=gc Udo Schroeter Music by: Martin Rezny: https://soundcloud.com/martin-re-n-1 Miguel Johnson: https://migueljohnson.bandcamp.com Stellardrone: https://stellardrone.bandcamp.com/

Professor at Harvard University, Dr. Avi Loeb, discusses his new book, 'Extraterrestrial: The First Sign of Intelligent Life Beyond Earth.' About Rising: Rising is a weekday morning show with bipartisan hosts that breaks the mold of morning TV by taking viewers inside the halls of Washington power like never before. The show leans into the day's political cycle with cutting edge analysis from DC insiders who can predict what is going to happen. It also sets the day's political agenda by breaking exclusive news with a team of scoop-driven reporters and demanding answers during interviews with the country's most important political newsmakers. Follow Rising on social media: Website: Hill.TV Facebook: facebook.com/HillTVLive/ Instagram: @HillTVLive Twitter: @HillTVLive Follow Saagar Enjeti & Krystal Ball on social media: Twitter: @esaagar and @krystalball Instagram: @esaagar and @krystalmball

On this episode of StarTalk Radio, Neil deGrasse Tyson and comic co-host Chuck Nice are answering a grab bag full of fan-submitted Cosmic Queries on topics ranging from dark matter to the end of the universe. What is dark matter? Could it be another universe’s gravity bleeding into our own universe? You’ll learn what the leading possibilities are to explain dark matter. Neil and Chuck dive into field theory. Discover more about our expanding universe. We discuss our eventual collision with the Andromeda galaxy. Neil explains how the universe might have removed chapters from its own history, forever hiding it from us. What would it be like if you grew up on Venus? Because of the thick atmosphere, would you be aware of other places in the galaxy? We ponder if we can use gravitational waves to communicate with life in other universes. You’ll also find out how the electromagnetic spectrum serves as a window to the universe. To kick off the last segment, Neil gets asked a big question: How does it all end? You’ll hear why the universe will end not in a bang, but, with a whimper. You’ll also hear about “The Big Rip.” Lastly, we explore the SN 1987A – the most recent supernova witnessed by humans. All that plus, we investigate the relationship between science and art. Thanks to our Patrons Kyle Marston, Caleb Martin, Zachary Zahn, David Liebert, Caralee Wahab, Michael Hoogwater, Robert Gowing, Tracy Skrabut, Henry Drefeldt, and Pyry Sipiläinen for supporting us this week. Support us on Patreon: https://www.patreon.com/startalkradio "Black Swan” & "White Swan" limited edition serigraph prints by Coast Salish artist Jane Kwatleematt Marston. For more information about this artist and her work, visit Inuit Gallery of Vancouver https://inuit.com/. FOLLOW or SUBSCRIBE to StarTalk: YouTube: https://www.youtube.com/user/startalkradio?sub_confirmation=1 Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalkradio/ About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! #StarTalk #NeildeGrasseTyson

Harvard astronomer Avi Loeb says aliens have visited us when the first-known interstellar object, ‘Oumuamua, entered our solar system. But does 'Oumuamua have anything to do with aliens? Finding intelligent life beyond our Earth could be the most game-changing event in human history. Support us on Patreon and help Cosmoknowledge become the number one destination for science: https://www.patreon.com/cosmoknowledge SUBSCRIBE ► https://goo.gl/PLLFPz ---- Website ► https://cosmoknowledge.com/ TikTok ► https://www.tiktok.com/@cosmoknowledge Instagram ► https://www.instagram.com/itscosmoknowledge Facebook ► https://facebook.com/cosmoknowledgee Edited by: Ardit Bicaj Narrated by: Russell Archey https://www.ravonmedia.com/ Graphics: Space Engine Avi Loeb (CC BY-SA 4.0) - https://creativecommons.org/licenses/by-sa/4.0 Stephen Hawking, Cambridge (CC BY 2.0) - https://creativecommons.org/licenses/by/2.0 Canada-France-Hawaii Telescope in Hawaii ESO, M. Kornmesser, L. Calcada NASA's Scientific Visualization Studio Josh Spradling / The Planetary Society (CC BY-SA 3.0) - https://creativecommons.org/licenses/by-sa/3.0 A.R.~hewiki (CC BY-SA 4.0) - https://creativecommons.org/licenses/by-sa/4.0 Kevin Gill (CC BY-SA 2.0) - https://creativecommons.org/licenses/by-sa/2.0 Music: Tread Lightly - Christoffer Moe Ditlevsen Clearer Views - From Now On Unification - Yonder Dale Thank you to our Patrons: DonPig xX-FLuKE-Xx - Cosmoknowledge brings news from space. We love you, explorers!

This week I take on the nature of Oumuamua, why I don’t agree with those who claim it is the result of alien technology, and more! Tonight our Dom's Cheese of the Week was Truffle Brie: https://domscheese.com/product/truffle-brie/ [Image Credit European Southern Observatory M. Kornmesser] Join the show recording every Thursday at 8pm ET by leaving a voicemail at www.SpaceRadioShow.com. Support the show on Patreon. Follow on Twitter | Facebook | Instagram | YouTube. Justin G, Matthew K, Chris L, Barbara K, Duncan M, Corey D, Justin Z, Neuterdude, Nate H, Andrew F, Naila, Aaron S, Scott M, Rob H, David B, Frank T, Tim R, Alex P, Tom Van S, Mark R, Alan B, Craig B, Richard K, Steve P, Dave L, Chuck C, Stephen M, Maureen R, Stace J, Neil P, lothian53 , COTFM, Stephen S, Ken L, Debra S, Alberto M, Matt C, Ron S, Stephen J, Joe R, Jeremy K, David P, Norm Z, Ulfert B, Robert B, Fr. Bruce W, Catherine R, Nicolai B, Sean M, Edward K, Callan R, Darren W, JJ_Holy, Tracy F, Tom, Sarah K, Bill H, Steven S, Jens O, Ryan L, Ella F, Richard S, Sam R, Thomas K, James C, Jorg D, R Larche, Syamkumar M, John S, Fred S, Homer V, Mark D, Brianna V, Becky L, Colin B, Arthur, Bruce A, Steven M, Brent B, Bill E, Jim L, Tim Z, Thomas W, Linda C, Joshua, David W, Aissa F, Tom G, and Marc H. Produced by Nancy Graziano. Cheese for today’s tasting proudly provided by Dom’s Cheese Shop (https://domscheese.com/). Hosted by Paul M. Sutter, astrophysicist and the one and only Agent to the Stars.

Finding intelligence in the cosmos might be done simply by paying attention. While SETI scientists look for radio or optical signals, the astronomy community is perennially on the lookout for all types of cosmic phenomena. One example of the latter is the discovery, three years ago, of what was thought to be a previously unknown asteroid. While asteroids are enormously commonplace in our solar system, this object, christened Oumuamua, is clearly from someone else’s solar system. Harvard astronomer Avi Loeb has suggested that Oumuamua might not be an asteroid at all, but a type of interstellar craft, sent our way by extraterrestrials. Why does he think this, and what is the larger lesson we should heed in our search for alien intelligence? If you like SETI Live, or just like science, support the SETI Institute! We're a non-profit research institution whose focus is understanding the nature and origins of life in the universe. Donate here: https://seti.org/donate Learn more about the SETI Institute and stay up-to-date on awesome science: - Subscribe to our YouTube channel at https://www.youtube.com/c/SETIInstitute/ - Watch our streams over on Twitch at https://www.twitch.tv/setiinstitute - Listen to our podcast, Big Picture Science http://www.bigpicturescience.org/ - Subscribe to our newsletter https://seti.org/signup - Buy merchandise from Chop Shop https://www.chopshopstore.com/collections/seti-institute/SETI Don't forget to like and subscribe! Ring the bell for notifications of when we go live. #SETILive #SearchforLife #AreWeAlone

The search for the mysterious planet nine continues as Mike Brown and Konstantin Batygin get closer to finding it. What would planet 9 be like and where in the solar system could it be? Also, what would alien life look like? Humanoid or something we couldn't even imagine. John Michael Godier discusses planet 9 and the fermi paradox with Parallax Nick. Parallax Nick, is a science presenter and YouTuber with a channel that focuses on sharing his thoughts and knowledge of science, history and the multiverse at large. Nick looks to our past to place a present understanding in context, and, hopefully a better grasp of the future. Parallax Nick channel: https://www.youtube.com/channel/UC0QdW-H7_l0zh_CoNhlwoBw Want to support the channel? Patreon: https://www.patreon.com/EventHorizonShow Follow us at other places! Website: https://www.eventhorizonshow.com/ Twitter: https://twitter.com/jmgeventhorizon Instagram: https://www.instagram.com/jmgeventhorizon/ Music featured on Event Horizon https://stellardrone.bandcamp.com/ https://migueljohnson.bandcamp.com/ https://leerosevere.bandcamp.com/ https://aeriumambient.bandcamp.com/ FOOTAGE: NASA ESA/Hubble ESO - M.Kornmesser ESO - L.Calcada ESO - Jose Francisco Salgado (josefrancisco.org) NAOJ University of Warwick Goddard Visualization Studio Langley Research Center Pixabay

Fossils are great, but actually watching dinosaurs go about their lives would be much better. Does astronomy give us or some distant aliens the chance to see the great dinosaurs in action? Find me on Twitter if you want to talk science! https://twitter.com/RyanRidden #dinosaur #alien #telescope

Go to https://buyraycon.com/isaacarthur for 15% off your order! Brought to you by Raycon. Water is one of the most common substances in the Universe, and Earth has far more seas than land and life arose in the ocean first. Planets covered entirely in water may be common and abundant with life, including intelligence extraterrestrial life. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version: https://soundcloud.com/isaac-arthur-148927746/oceanic-aliens Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/oceanic-aliens-narration-only Credits: Alien Civilization: Oceanic Aliens Science & Futurism with Isaac Arthur Episode 274; January 21, 2021 Produced, Written, and Narrated by Isaac Arthur Editors: Jason Burbank Jerry Guern https://www.youtube.com/watch?v=mxgArWbEhZg Keith Blockus Cover Art: Jakub Grygier https://www.artstation.com/jakub_grygier Graphics: Fishy Tree https://www.deviantart.com/fishytree/ Katie Byrne Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana Sergio Botero https://www.artstation.com/sboterod?fref=gc Udo Schroeter Music by: Martin Rezny: https://soundcloud.com/martin-re-n-1 Miguel Johnson: https://migueljohnson.bandcamp.com Stellardrone: https://stellardrone.bandcamp.com/

What if there was a museum that contained every type of life form in the universe? A place that includes the possible forms alien life might take, from the eerily familiar to the utterly exotic, ranging from the inside of the Earth to the most hostile corners of the universe. This place does not yet exist but it has been digitally created by Melodysheep. Join us on Wednesday Jan. 20 at 10am PST for a special SETI Live with John D. Boswell, aka Melodysheep, a filmmaker, composer, VFX artist, known for his YouTube series named Life Beyond. John will sit down with SETI Institute Senior Astronomer, Franck Marchis, to discuss his recent video named the Museum of Alien Life which already had 7.3 million views on YouTube. John will explain the motivation for this video, the science behind it, the process to make it, and of course the creative content. We recommend you watch the video before the SETI Live here: https://www.youtube.com/watch?v=ThDYazipjSI&t=651s&ab_channel=melodysheep https://www.melodysheep.com/ If you like SETI Live, or just like science, support the SETI Institute! We're a non-profit research institution whose focus is understanding the nature and origins of life in the universe. Donate here: https://seti.org/donate Learn more about the SETI Institute and stay up-to-date on awesome science: - Subscribe to our YouTube channel at https://www.youtube.com/c/SETIInstitute/ - Watch our streams over on Twitch at https://www.twitch.tv/setiinstitute - Listen to our podcast, Big Picture Science http://www.bigpicturescience.org/ - Subscribe to our newsletter https://seti.org/signup - Buy merchandise from Chop Shop https://www.chopshopstore.com/collections/seti-institute/SETI Don't forget to like and subscribe! Ring the bell for notifications of when we go live. #SETILive #SearchforLife #AreWeAlone

In this interview with Avi Loeb, the Frank B. Baird, Jr., Professor of Science and astrophysicist at Harvard University, he explains why in his new book, Extraterrestrial: The First Sign of Intelligent Life Beyond Earth, he has put forth the theory that our first interstellar visitor to be spotted in our solar system, Oumuamua, might just be the first sign of intelligent life beyond earth. Extraterrestrial: The First Sign of Intelligent Life Beyond Earth https://amzn.to/2LiIxoo affiliate link Loeb, A., 2018, "Six Strange Facts About`Oumuamua", Scientific American: https://arxiv.org/abs/1811.08832 Bialy, S. & Loeb, A., 2018, "Could Solar Radiation Pressure Explain ‘Oumuamua’s Peculiar Acceleration?", ApJ, 868, 1: https://arxiv.org/abs/1810.11490 Want to support the channel? Patreon: https://www.patreon.com/EventHorizonShow Follow us at other places! Website: https://www.eventhorizonshow.com/ Twitter: https://twitter.com/jmgeventhorizon Instagram: https://www.instagram.com/jmgeventhorizon/ Music featured on Event Horizon Opening Song: Unexplored Moon by Miguel Johnson Ending Song: Ascent by Stellardrone https://stellardrone.bandcamp.com/ https://migueljohnson.bandcamp.com/ https://leerosevere.bandcamp.com/ https://aeriumambient.bandcamp.com/ FOOTAGE: NASA ESA/Hubble ESO - M.Kornmesser ESO - L.Calcada ESO - Jose Francisco Salgado (josefrancisco.org) NAOJ University of Warwick Goddard Visualization Studio Langley Research Center Pixabay

Three years ago, we detected the first interstellar object passing through the Solar System, `Oumuamua. Ever since, astronomers have been debating the origins of this strange body. Whilst many hypothesize an asteroid, the media is ablaze with the possibility that it could be alien technology. Join us today for a discussion of this theory and the counter-arguments proposed. Written & presented by Prof David Kipping. Thanks to Dr Sean Raymond for fact checking - check out his blog www.planetplanet.net and astro poetry book https://www.amazon.com/dp/B08LFZZWGZ You can now support our research program and the Cool Worlds Lab at Columbia University: https://www.coolworldslab.com/support Get Stash here! https://teespring.com/stores/cool-worlds-store Thank-you to our supporters K. Clark, T. Widdowson, D. Smith, S. Hackley, M. Sloan, L. Sanborn, K. Kantor, P. Herman, C. Bottaccini, D. Brunk, D. Daughaday, S. Fincher, J. Kindred, A. Jones, J. Allen, S. Baldwin, J. Black, S. Brownlee, D. Denholm, T. Dorais, G. Downton, E. Urrestarazu, G. Fulton, S. Griffiths, P. Halloran, J. Jurcevic, N. Kildal, J. Kobernick, W. Kobernick, V. Kremer, M. Lijoi, S. Loftin, B. Loizides, A. Maslyanchuk, B. Matson, O. Mcintyre, L. Mitchell, A. Pelletier, J. Rivillas, B. Robinson, Z. Star, L. Steely, E. Stefan-Matyus, M. Steven, E. West, B. York, T. Zanjonc, P. Gowd, S. Kelsey, P. Kommareddy, C. Wolfred, D. Vennel, E. Dessoi, F. Naeem, F. Rebolledo, H. Laging, J. Falls, P. Rutherford, T. Leger, L. Skov, D. Roberts, E. Wilson, I. Baskerville, J. Bassnett, J. Shackleford, I. Johnstone, G. Suter, I. Hopcraft, J. Valdes, P. Akrill-Misso, W. Robertson, E. Orman, G. Ingham, D. Van Hecke, J. Pilloff, T. Bernhard. D. Dianovszki, E. Cook, S. Mass, T. Richards, T. Lancaster, C. Stouffer, G. Benson, A. de Vaal, C. Diamantis, J. Wenzel, M. Elliot, M. Wallstab, S. Bialek, B. Thomson, B. Daniluk, B. Bowen, D. Jacobson, D. Lukens, G. Coogan, J. Bushong, M. Wacinski, M. O'Donnell, M. Forbes, S. Vystoropskyi, S. Carr, T. Laird, S. Lee, T. Tschopp W. van den Wollenberg, Z. Danielson, Z. Turner, E. Fernandes, E. Vinci, L. Holc, S. Grant, S. Seyer, J. Patrick-Saunders, P. Conroy, R. Clifton, C. Butler, M. Peraic, N. Cordova, P. Inkpen & K. Uyemura. ::References:: ► Loeb, A., 2018, "Six Strange Facts About`Oumuamua", Scientific American: https://arxiv.org/abs/1811.08832 ► The 'Oumuamua ISSI Team, 2019, "The Natural History of 'Oumuamua", Nature Astronomy, 3, 594: https://arxiv.org/abs/1907.01910 ► Bialy, S. & Loeb, A., 2018, "Could Solar Radiation Pressure Explain ‘Oumuamua’s Peculiar Acceleration?", ApJ, 868, 1: https://arxiv.org/abs/1810.11490 ► Siraj, A. & Loeb, A., 2019, "‘Oumuamua's Geometry Could Be More Extreme than Previously Inferred", RNAAS, 3, 15: https://iopscience.iop.org/article/10.3847/2515-5172/aafe7c ► Zhang, Y. & Lin, D., 2020, "Tidal fragmentation as the origin of 1I/2017 U1 (‘Oumuamua)", Nature Astronomy, 4, 852: https://www.nature.com/articles/s41550-020-1065-8 ► Engelhardt, T. et al., 2017, "An Observational Upper Limit on the Interstellar Number Density of Asteroids and Comets", AJ, 153, 133: https://arxiv.org/abs/1702.02237 ► Meech, K., et al., 2017, "A brief visit from a red and extremely elongated interstellar asteroid", Nature, 552, 378 ::Clips used:: See shorturl.at/glFLR ::Music:: Music used is licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist. ► "My Unbelief" by Hill licensed via SS ► "Cylinder Two" and "Cylinder Four" by Chris Zabriskie licensed under a CC Attribution license: http://chriszabriskie.com/cylinders/ ► "Painted Deserts" by Shimmer licensed via SS ► "Cylinder Five" by Chris Zabriskie licensed under a CC Attribution license: http://chriszabriskie.com/cylinders/ ► "Stories About The World That Once Was" and "We Were Never Meant to Live Here" by Chris Zabriskie licensed under a CC Attribution license: http://chriszabriskie.com/neptuneflux/ ► "Y" by Joachim Heinrich licensed under a CC Attribution license: https://joachimheinrich.bandcamp.com ► "Human Nature" by Hill, used with permission from the artist: https://hillmusic.bandcamp.com/album/shade-upon-thy-right-hand ► "Trace Correction" by Indive licensed under a CC Attribution license: https://indive.bandcamp.com 0:00 Six Strange Facts 6:27 Fact 1 8:19 Fact 2 10:35 Fact 3 12:10 Fact 4 16:31 Fact 5 17:19 Fact 6 19:43 Conclusion #Oumuamua #IsOumuamuaAlien #CoolWorlds

Are we too Earth-centric when we search for alien life? Life and the planetary bodies on which it can thrive may be much more diverse than we can imagine. Our Solar System and the exoplanets discovered so far provide us with a first glimpse of what is possible. Seth Shostak explores with Dirk Schultze-Makuch. If you like SETI Live, or just like science, support the SETI Institute! We're a non-profit research institution whose focus is understanding the nature and origins of life in the universe. Donate here: https://seti.org/donate Learn more about the SETI Institute and stay up-to-date on awesome science: - Subscribe to our YouTube channel at https://www.youtube.com/c/SETIInstitute/ - Watch our streams over on Twitch at https://www.twitch.tv/setiinstitute - Listen to our podcast, Big Picture Science http://www.bigpicturescience.org/ - Subscribe to our newsletter https://seti.org/signup - Buy merchandise from Chop Shop https://www.chopshopstore.com/collections/seti-institute/SETI Don't forget to like and subscribe! Ring the bell for notifications of when we go live. #SETILive #SearchforLife #AreWeAlone

Did we really detect a signal from Proxima Centauri? Get MagellanTV here: https://try.magellantv.com/launchpad and get an exclusive offer for our viewers: an extended, month-long trial, FREE. MagellanTV has the largest and best collection of Science content anywhere, including Space, Physics, Technology, Nature, Mind and Body, and a growing collection of 4K. This new streaming service has 3,000+ great documentaries. Check out our personal recommendation and MagellanTV’s exclusive playlists: https://www.magellantv.com/genres/space. A new (alien?) signal designated Breakthrough Listen Candidate One (BLC-1) appears to have originated from Proxima Centauri, the closest star to our solar system. It's already being compared to the famous WOW! signal of 1977, but it's very likely not really coming from Proxima, or even from beyond our solar system. But, it could nevertheless be a significant milestone in the search for extraterrestrial intelligence, or SETI. 00:00 Start 02:26 Ad 03:32 Proxima Centauri system 05:17 Parkes observations 06:16 How sources are determined 07:32 Satellites and orbits 10:22 Signal characteristics and airports? 12:40 Confirmation with future telescopes 14:34 An interstellar communications network? 15:40 Next steps and expected results 16:03 Telescopes on the Moon 16:25 Thanks and Patreon and Subscribe! 🔔 Subscribe for more: https://www.youtube.com/christianready?sub_confirmation=1 🖖 Share this video with a fellow space traveler: https://youtu.be/HZrlY7d8fMI 🔴 Watch my most recent upload: https://goo.gl/QbRcE2 🚀 Help me improve the channel by joining the community on Patreon https://patreon.com/launchpadastro 🚀 Check out Launch Pad merchandise! https://teespring.com/stores/launchpadastro Disclaimer: Some of these links go to one of my websites and some are affiliate links where I'll earn a small commission if you make a purchase at no additional cost to you. ✅ Let's connect: For business inquiries - chris AT christianready DOT com Twitter - @launchpadastro Instagram - @launchpadastro Facebook - https://www.facebook.com/LaunchPadAstronomy/ Discord - https://discord.gg/yChAuUe 📭 c/o Christian Ready P.O. Box 66 Westminster, MD 21158 United States Earth

Finding aliens: Is there a ‘theory of everything’ for life? Watch the newest video from Big Think: https://bigth.ink/NewVideo Learn skills from the world's top minds at Big Think Edge: https://bigth.ink/Edge ---------------------------------------------------------------------------------- This video was produced in partnership with John Templeton Foundation. What, should it exist, is the universal law that connects all living things? To even dream of answering that question, and to one day find alien life elsewhere in the cosmos, humans must first reconcile the fact that our definition of life is inadequate. For astrobiologist Sara Walker, understanding the universe, its origin, and our place in it starts with a deep investigation into the chemistry of life. She argues that it is time to change our chemical perspective—detecting oxygen in an exoplanet's atmosphere is no longer sufficient enough evidence to suggest the presence of living organisms. "Because we don't know what life is, we don't know where to look for it," Walker says, adding that an unclear or too narrow focus could result in missed discoveries. Gaining new insights into what life on Earth is could shift our quest to find alien life in the universe. ---------------------------------------------------------------------------------- SARA WALKER: Sara Walker is an astrobiologist and theoretical physicist interested in the origin of life and how to find life on other worlds. Walker is the deputy director of the Beyond Center for Fundamental Concepts in Science, associate director of the ASU-Santa Fe Institute Center for Biosocial Complex Systems, and assistant professor in the School of Earth and Space Exploration at Arizona State University. She is also co-founder of the astrobiology-themed social website SAGANet.org. Read Sara Walker's book "From Matter to Life (Information and Causality)" at https://amzn.to/3pm9S7r ---------------------------------------------------------------------------------- TRANSCRIPT: SARA WALKER: We have, through science over the last 400 years, come to have a really deep understanding of the natural world. But so far that deep understanding doesn't include us. It's really important in an age when we're being faced with existential threats on a regular basis to understand our place in the cosmos. And I think unless we actually really address the question of 'What is life?' we're not really gonna understand ourselves in the context of the systems that we live in. Because we don't know what life is, we don't know where in the universe to look for it. My biggest worry is that we might just completely miss discovering it because we actually don't really have an idea what we're looking for. And we're thinking about the definitions of life the wrong way. I'm Sara Walker and I'm an astrobiologist. What that means is that I'm really interested in understanding if there's life elsewhere in the universe, but I'm also really interested in just understanding ourselves. And so most of my work is really focused on understanding the origin of life on Earth. To do that, my group is building ensembles of thousands of organisms and thousands of ecosystems and looking at properties of their chemistry. NARRATOR: On Earth, we're surrounded by life, but we have no idea how common or rare living systems are in the universe. We have no idea how many different forms life can take, no notion of what limits there are to its size or the timescales it operates on. We might've encountered alien life already and not recognized it. WALKER: There's this assumption that we make that because we are alive, we actually recognize life when we see it, or we understand what life is, and I think that's actually a really flawed viewpoint. For a long time, it was thought if we see oxygen in the atmosphere of an exoplanet, that is a sign of life, and we will be able to claim victory that we have discovered aliens. But as scientists thought about it a little bit more, it turns out you can make atmospheric oxygen pretty easily with simple models that don't even contain life. We really need a more general definition for life that doesn't depend on the specific chemistry that life on Earth uses but is more characteristic of what life is as a process that organizes chemistry and does all of the wonderful things that we associate with living matter. So I, for example, have a very broad definition of life that includes things like technology. Part of the reason for that is if you found a phone on Mars, you might not think that you discovered life, but you certainly would think you discovered evidence of life. Because the likelihood of that phone being there is zero without a living process putting it there. Life is literally the physics of creativity. It's the creative process in the universe. It's not an individual in that process... Read the full transcript at https://bigthink.com/john-templeton-foundation/alien-life?

News has leaked of the discovery of a radio transmission from our nearest neighboring star, Proxima Centauri. Did we just detect alien communications?! Join us for this special video with Professor Kipping explaining what we know and why some skepticism is warranted. You can now support our research program and the Cool Worlds Lab at Columbia University: https://www.coolworldslab.com/support Get Stash here! https://teespring.com/stores/cool-worlds-store Thank-you to K. Clark, T. Widdowson, D. Smith, S. Hackley, M. Sloan, L. Sanborn, K. Kantor, P. Herman, A. Aganbegyan, C. Bottaccini, D. Brunk, D. Daughaday, S. Fincher, J. Kindred, A. Jones, J. Allen, S. Baldwin, J. Black, S. Brownlee, S. Chaturvedi, D. Denholm, T. Dorais, G. Downton, E. Urrestarazu, G. Fulton, S. Griffiths, P. Halloran, J. Jurcevic, N. Kildal, J. Kobernick, W. Kobernick, V. Kremer, M. Lijoi, S. Loftin, B. Loizides, A. Maslyanchuk, B. Matson, O. Mcintyre, L. Mitchell, A. Pelletier, J. Rivillas, B. Robinson, Z. Star, L. Steely, E. Stefan-Matyus, M. Steven, E. West, B. York, T. Zajonc, P. Gowd, S. Kelsey, P. Kommareddy, C. Wolfred, D. Vennel, E. Dessoi, F. Naeem, F. Rebolledo, H. Laging, J. Falls, J. Adams, M. Gremillion, P. Rutherford, T. Kline, T. Leger, L. Skov, D. Roberts, E. Wilson, I. Baskerville, J. Bassnett, J. Shackleford, M. Undin, M. Kroebel, I. Johnstone, G. Suter, I. Hopcraft, J. Valdes, P. Akrill-Misso, W. Robertson, E. Orman, G. Ingham, D. Hecke, J. Pilloff, T. Bernhard, D. Dianovszki, E. Cook, S. Mass, T. Richards, T. Lancaster, C. Stouffer, G. Benson, A. de Vaal, C. Diamantis, J. Wenzel, M. Elliott, M. Wallstab, S. Bialek, B. Thomson, B. Daniluk, B. Bowen, D. Jacobson & M. Forbes. ::Clips used:: ► Parkes timelapse by Angelo Papakostas: https://vimeo.com/66404362 ► LEO orbits by NASA/Goddard Space Flight Center Scientific Visualization Studio: https://youtu.be/gF9UlTYR5d0 ► Moon transit by NASA/NOAA/EPIC: https://youtu.be/DMdhQsHbWTs ► Satellite orbit animation by ESA: http://www.esa.int/ESA_Multimedia/Images/2006/09/Animation_of_crowding_of_the_GEO ► Molniya orbit animation by Sergey Lemeshencko: https://youtu.be/5wt_2mM4Z1c ::Music:: Music used is licensed via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/) and/or with permission from the artist. ► "Trace Correction" by Indive licensed under a CC Attribution license: https://indive.bandcamp.com #BLC1 #Wow2020 #BreakthroughListen

From both Gregory Benford and Larry Niven comes a thrilling, hard science fiction series, Bowl of Heaven, that follows a human expedition to another star system that’s suddenly interrupted by a gigantic artifact floating in interstellar space. The bowl-shaped structure engulfs an entire star, and has a habitable area equivalent to many millions of Earths. Gregory Benford is a physicist, educator, and award winning author. Larry Niven is an award winning author, best known for his book Ringworld. Link: Bowl of Heaven (affiliate link): https://amzn.to/3r5AWJO Gravitational Wave Transmitter: https://arxiv.org/pdf/1806.02334.pdf Want to support the channel? Patreon: https://www.patreon.com/EventHorizonShow Follow us at other places! Website: https://www.eventhorizonshow.com/ @jmgeventhorizon Music featured on Event Horizon https://stellardrone.bandcamp.com/ https://migueljohnson.bandcamp.com/ https://leerosevere.bandcamp.com/ https://aeriumambient.bandcamp.com/ FOOTAGE: NASA ESA/Hubble ESO - M.Kornmesser ESO - L.Calcada ESO - Jose Francisco Salgado (josefrancisco.org) NAOJ University of Warwick Goddard Visualization Studio Langley Research Center Pixabay

Arthropods are about as alien to us as another highly evolved bilateral animal can be. That’s undoubtedly the reason why their looks and features are often adopted into science fiction for creating odd-looking extraterrestrial beings. Despite their humble body sizes, arthropods have been extremely successful in populating our biosphere. So given the enormous success of this particular body plan, it's likely that alternate "arthropoids" or "arthropodoids" could enjoy the same success in alien biospheres. It would be a very interesting exercise in speculative zoology to design and tweak such “alternate arthropods” to evolve in different ways. But before we do that, we need to know how our won arthropods, like insects, crustaceans, chelicerates (spiders and scorpions), myriapods and others evolved. It all goes back to the Cambrian Explosion where weird life forms like Anomalocaris and Hallucigenia, but also Priapulids, hold the key to understanding the genesis of this major phylum. So how could these life forms evolve elsewhere? Let’s find out! Website: https://www.phrenotopia.com/ Twitter: https://twitter.com/Phrenotopian Video Chapters: 0:00 Introduction 1:18 Wonderful Life 4:18 Arthropod Origins Revealed 7:37 Ecdysozoan Roots 10:58 Alternate Arthropods 14:03 The Arthropod Recipe 16:20 Conclusions REFERENCES (under construction) - Chen et al (2013) "Trace fossil evidence for Ediacaran bilaterian animals with complex behaviors" Precambrian Research Volume 224, January 2013, Pages 690-701 - Harvey THP, Dong X & Donoghue PCJ (2010) "Are palaeoscolecids ancestral ecdysozoans?" Evolution & development https://doi.org/10.1111/j.1525-142X.2010.00403.x - Smith MR (2015) A palaeoscolecid worm from the Burgess Shale. Palaeontology, 58: 973-979. https://doi:10.1111/pala.12210 - Smith MR & Caron JB (2015) "Hallucigenia’s head and the pharyngeal armature of early ecdysozoans" Nature 523 https://doi.org/10.1038/nature14573 CREDITS (under construction) Images: - Spider anatomy | https://en.wikipedia.org/wiki/Fil:Spider_internal_anatomy-en.svg - "Diyu Arthropods" by Trollmans | https://www.deviantart.com/trollmans Footage: - "Title" @yt | URL - "Kinorhyncha, Echinoderes sp" Matthew Lee | https://youtu.be/H86xOLhFv3E Music: - "Backyard Safari" by TechSmith - "What Does Anybody Know About Anything" by Chris Zabriskie | http://chriszabriskie.com/ | CC BY 4.0 - "Digital Memories" by @Unicorn Heads - "Progressive Chords Lead" by Frankum | https://soundcloud.com/frankumjay - "Kick and Progressive Leads" by Frankum