EXTRATERRESTRIAL LIFE

You can find our beautiful education posters, useful notebooks and cozy sweaters in our shop now: https://shop.kurzgesagt.org Sources & further reading: https://sites.google.com/view/sources-kardashev-scale/ The observable universe is a big place that has been around for more than 13 billion years. Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our home galaxy. In the milky way alone scientists assume there are some 40 billion earth like planets in the habitable zone of their stars. When we look at these numbers it is hard to imagine that there is nobody else out there. OUR CHANNELS ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ German Channel: https://kgs.link/youtubeDE Spanish Channel: https://kgs.link/youtubeES HOW CAN YOU SUPPORT US? ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ This is how we make our living and it would be a pleasure if you support us! Get Merch designed with ❤ from https://kgs.link/shop Join the Patreon Bird Army 🐧 https://kgs.link/patreon DISCUSSIONS & SOCIAL MEDIA ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ Reddit: https://kgs.link/reddit Instagram: https://kgs.link/instagram Twitter: https://kgs.link/twitter Facebook: https://kgs.link/facebook Discord: https://kgs.link/discord Newsletter: https://kgs.link/newsletter OUR VOICE ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ The Kurzgesagt voice is from Steve Taylor: https://kgs.link/youtube-voice OUR MUSIC ♬♪ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ 700+ minutes of Kurzgesagt Soundtracks by Epic Mountain: Spotify: https://kgs.link/music-spotify Soundcloud: https://kgs.link/music-soundcloud Bandcamp: https://kgs.link/music-bandcamp Youtube: https://kgs.link/music-youtube Facebook: https://kgs.link/music-facebook The Soundtrack of this video: Soundcloud: https://bit.ly/2Ezt6Ek Bandcamp: https://bit.ly/3gwZzJP 🐦🐧🐤 PATREON BIRD ARMY 🐤🐧🐦 ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ Many Thanks to our wonderful Patreons from http://kgs.link/patreon who support us every month and made this video possible: Taimur Ijaz, Tony, Michael Baughman, Andrew Hui, Sleepy, Kyle Wayman, Ryan Newsome, Jeremy Southgate, Anthony Stellato, Cartasiand, MabodofuTK, Manuel Mayer, Christine, Thomas Mann, Brandie Andrews, Ricardo Anjos, JR 1, William Marshall, Desirae Pulido, asher flatt, Garrett, 김sha, Ryan Collier, Jan Sjögren, Giorgio Bettineschi, Nick W, Gabriela, Calum Calder, Adam Haspel, Arthur Pemberton, mark faber, Aidan Izuagbe, Andrew Whitman, Nadia Guarracino, Murat Kuş, Zyra Nembhard, Will Jones, Pawel Kozlowski, Coen John, Daniel Moxham, Shanice Codner, Spyro, Brian Monahan, Joris Oosterhuis, Hari prasanth, Maarten Jacobs, Brian Chan, Sanjay Upreti, Richard Selfridge, Marc-André Dubois, Greg Sullivan, Tassos Kanellakopoulos, Daniel Küster, Austin Fenton, Michael Levin, Conrad Mera, Philip Schillmaier, Claas Fandré, Alex Porter, Thomas Krause, Thorsten Karras, Elora Vink, Vincent M, Patrick Gormley, Jasson Schrock, Erorus, Bradley Kinder, david harvey, Nick Smit, Zachary Rice, Lanae, Gijs Cremers, Rhys Patterson, TasteofChoklit, Justin Griffith, Christopher Cone, Rylo, Bryan Reckamp, Feldrick, William Grunow, Russell Wiggins, Leigh Candalino, Matthew Stanford, Sun, Valeriy Whaler, John Paine, Alex Cimpean, Valerie-Maria Oberreiter, Mariya, ClownWhosFeelnDown, Isaac Hewins, Raymond Tse, Lucas Mendelson, Ovi Postel, Saru, Chris Gelme, Andrew Podolecki, Dennis, Sirik Loosman, Bumbrazz, Joshua Westgate, Gaëtan Séverac, yourcheapdate, Calin Tuns, Nicholas Broad, Marcel Thekook, James DuBoise, Lars Naurath, Joris Crevecoeur, Lars Comstock, Kevin Walsh, Matthew Bae, Jackson Mehr, Thomas Roggina, António Martins, Dimas Herlambang, James, Luke Wolf, Gilbert McCray, Ingmi Eißfeld, Caleb D, RJ, Filippo Guiducci, Luiz Siqueira, Luc Leonard, massimo ales, Theo Wolfe, Julian Rodriguez, Callan McLoughlin, Tommaso Caudullo, Happy Juice, Julian Ma, Robert Erickson, Henry Shew, Kayla Ford, Rémi Pichon, Wyatt Powell, MelissaBee, Emily T, Milo Vermeulen, Benjamin

You can buy Universe Sandbox 2 here: http://amzn.to/2yJqwU6 Or get a shirt: https://teespring.com/stores/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about the UFO videos that were released by the Pentagon and what it may mean. Pentagon official release: https://www.defense.gov/Newsroom/Releases/Release/Article/2165713/statement-by-the-department-of-defense-on-the-release-of-historical-navy-videos/ Mike West videos: https://www.youtube.com/playlist?list=PL-4ZqTjKmhn5Qr0tCHkCVnqTx_c0P3O2t Dave Falch's video: https://www.youtube.com/watch?reload=9&v=aFj-URCOsWA Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath Space Engine is available for free here: http://spaceengine.org Enjoy and please subscribe. Twitter: https://twitter.com/WhatDaMath Facebook: https://www.facebook.com/whatdamath Twitch: http://www.twitch.tv/whatdamath Bitcoins to spare? Donate them here to help this channel grow! 1GFiTKxWyEjAjZv4vsNtWTUmL53HgXBuvu Alternatively, PayPal donations can be sent here: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DNKM9SDWU3B3Q&source=url The hardware used to record these videos: CPU: https://amzn.to/2LZFQCJ Video Card: https://amzn.to/2M1W26C Motherboard: https://amzn.to/2JYGiQQ RAM: https://amzn.to/2Mwy2t4 PSU: https://amzn.to/2LZcrIH Case: https://amzn.to/2MwJZz4 Microphone: https://amzn.to/2t5jTv0 Mixer: https://amzn.to/2JOL0oF Recording and Editing: https://amzn.to/2LX6uvU Some of the above are affiliate links, meaning I would get a (very small) percentage of the price paid. Thank you to all Patreon supporters of this channel Specifically, great thanks to the following members: Morrison Waud Vlad Manshin Mark Teranishi TheHuntress Ralph Spataro Albert B. Cannon Lilith Dawn Greg Lambros adam lee Gabriel Seiffert Henry Spadoni J Carter Jer Silver surfer Konrad Kummli Nick Dolgy UnexpectedBooks.com Mario Rahmani George Williams Shinne Jakub Glos Johann Goergen Jake Salo LS Greger Lyndon Riley Lauren Smith Michael Tiganila Russell Sears Vinod sethi Dave Blair Robert Wyssbrod Randal Masutani Michael Mitsuda Assaf Dar Sagol Liam Moss Timothy Welter MD Barnard Rabenold Gordon Cooper Tracy Burgess Douglas Burns Jayjay Volz Anataine Deva Kai Raphahn Sander Stols Bodo Graßmann Daniel Charles Smith Daniel G. Eugene Sandulenko gary steelman Max McNally Michael Koebel Sergio Ruelas Steven Aiello Victor Julian Castillo xyndicate Honey Suzanne Lyons Olegas Budnik Dale Andrew Darling Niji Peter Hamrak Matthew Lazear Alexander Afanasyev Anton Newman Anton Reed

Following the news that the Pentagon has a task force looking into UFOs, CNN's Michael Smerconish speaks to a former Defense for Intelligence official under the Clinton and Bush administrations about the phenomenons.

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Is there life outside the earth? Mankind has been asking these questions for centuries. But how would we react to first contact with aliens? Do they swim under the ice of Jupiter's moon Europa? Do they race through space in spaceships? Star astronomers from all over the world have been discussing where alien organisms could be - and how we could find them. "This question is currently dividing the research community," said the US space agency Nasa and Michigan Technological University, which organized the debate. ---- This channel offers you full episodes of high quality documentaries. Enjoy and don't forget to subscribe 🙂 ---- Other channels you might be interested in: criminals and crimefighters: https://www.youtube.com/channel/UCYuXyzwA_w4-c1FJrqOnR0A hazards and catastrophes: https://www.youtube.com/channel/UC5WE_bClugxSVG1ENir8qzg

There's a plausible chance that we may be alone in the galaxy right now. But the odds that the galaxy has never, and will never, host other civilizations is far less likely. Today we explore the possibility of communicating through time, and how such a feat might be accomplished. You can now support our research program and the Cool Worlds Lab at Columbia University: https://www.coolworldslab.com/support Thank-you to Kevin Clark, Tom Widdowson, Denny Smith, Stephanie Hackley, Kolos Kantor, Patrick Herman, Abel Aganbegyan, Claudio Bottaccini, Daniel Brunk, Scott Fincher & James Kindred for their support and especially to Executive Producers Mark Sloan, Laura Sanborn & Douglas Daughaday. References: ► Freitas & Valdes (1999), "The Search for Extraterrestrial Artifacts (SETA)", JBIS, 36, 501: https://ui.adsabs.harvard.edu/abs/1983JBIS...36..501F/abstract ► Luc Arnold (2005), "Transit Lightcurve Signatures of Artificial Objects", ApJ, 627, 534: https://arxiv.org/abs/astro-ph/0503580 ► Jeanna Bryner (2010), "Odds of Life on Newfound Earth-Size Planet '100 Percent,' Astronomer Says", Space.com: https://www.space.com/9225-odds-life-newfound-earth-size-planet-100-percent-astronomer.html ► David Kipping (2020), "An Objective Bayesian Analysis of Life's Early Start and Our Late Arrival", PNAS, 117, 11995: https://arxiv.org/abs/2005.09008 ► Denis Chow (2011), "On the Moon, Flags & Footprints of Apollo Astronauts Won't Last Forever", space.com: https://www.space.com/12846-apollo-moon-landing-sites-flags-footprints.html ::Video clips used:: ► Intro clip are images from NASA's EPIC DSCOVR mission, interpolated by BlueTurn: https://youtu.be/Mm8L6Hm6c-g ► Stars time lapse by Ben Vegel: https://youtu.be/Wl2sDEpjqQI ► Radio teleascope timelapse by Alex Cherney and CSIRO: https://youtu.be/1hawK5JwVfY ► NASA/JPL-Caltech/T. Pyle (SSC-Caltech) http://www.spitzer.caltech.edu/video-audio/728?limit=20&page=1 ► Galaxy fly through animation by AA VFX: https://youtu.be/SdMqV4h9kVg ► Veritas timelapse by Daniel Gall: https://youtu.be/w1tI1MYTo2k ► Milky Way animation by Stefan Payne-Wardenaar: https://vimeo.com/330625918 ► Spinning galaxy animation by Huy Trường Nguyễn: https://youtu.be/VhowJ3OZ2BM ► Flying through stars by Wilson Blindado: https://youtu.be/lhSJGlgR0UI ► Exoplanet animation by ESO/M. Kornmesser: https://www.eso.org/public/videos/eso1134b/ ► New York timekapse by Urban VFX: https://youtu.be/-VqQ9wC2S7Y ► Earth in 4k by NASA/ESA/M.Kornmesser: https://www.eso.org/public/videos/earth_2015_4k/ ► Sand dunes blowing by HD Footage: https://youtu.be/y_xDLMVQmmE ► Pyramids from AirPano VR: https://youtu.be/UuGWdt0K3Ic ► Easter Island footage by Michael Kohen: https://youtu.be/acbdh8P8DOY ► Stonehenge timelapse by Love Great Britain: https://youtu.be/1d8L94ANeBg ► Museum tour by ProWalk Tours: https://www.youtube.com/watch?v=EdCReWs6-wI ► Voyager animations by NASA JPL Caltech: https://www.jpl.nasa.gov/video/details.php?id=1248 ► Galaxy colonization animation by Jonathan Carroll-Nellenback ► Outro animation by ESA/Hubble and M. Kornmesser: https://www.spacetelescope.org/videos/hubblecast70b/ ► Intro/Outro voice over by Carl Sagan "Pale Blue Dot" ::Movies/TV scenes used:: ► Contact (1997) Warner Bros. ► Ad Astra (2019) 20th Century Fox ► Valerian and the City of a Thousand Planets (2017) EuropaCorp Distribution ► Papillon (1973) Allied Artists ► The Assassination of Jesse James by the Coward Robert Ford (2007) Warner Bros. ► Into The Wild (2007) Paramount Vantage ► Interstellar (2014) Paramount Pictures ► The Time Machine (2002) DreamWorks Pictures ::Music:: All 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/) ► "Fable" by Stephen Keech licensed via SS ► "My Unbelief" by Hill licensed via SS ► "Cylinder Five" by Chris Zabriskie licensed under a CC Attribution license: http://chriszabriskie.com/cylinders/ ► "Painted Deserts" by Shimmer licensed via SS ► "Always Dreaming" by Caleb Etheridge via SS ► "Waking Up" by Atlas licensed via SS ► "Cylinder Two" by Chris Zabriskie licensed under a CC Attribution license: http://chriszabriskie.com/cylinders/ ► "We Were Never Meant to Live Here" by Chris Zabriskie licensed under a CC Attribution license: http://chriszabriskie.com/neptuneflux/ ► "Horizon" by Joachim Heinrich licensed under a CC Attribution license: https://joachimheinrich.bandcamp.com/track/horizon Thumbnail licensed through iStock.com

Is it possible to build a Dyson Sphere? How do we search for Dyson Swarms in the universe? Jason Wright is a professor of Astronomy and astrophysics at Penn State. His more recent paper titled, Dyson Spheres, looks at the overall history of the idea of building a megastructure to best use a star's energy. Professor Wright joins John Michael Godier on Event Horizon to discuss the subject in depth, looking at what can be done with the energy to how and have we searched for signs of these alien megastructures built by alien civilizations. One close call was Tabby's star or KIC8462 and what was causing the stars light to dim during transits. Link: AstroWright Blog: https://sites.psu.edu/astrowright/ Jason Wright twitter: https://twitter.com/Astro_Wright Dyson Spheres: https://arxiv.org/abs/2006.16734 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 Thumbnail: https://www.flickr.com/photos/djandywdotcom/31437348556 Dyson Sphere Dyson Swarm Alien civilization

The biology of aliens: How much do we know? 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 ---------------------------------------------------------------------------------- Ask someone what they think aliens look like and you'll probably get a description heavily informed by films and pop culture. The existence of life beyond our planet has yet to be confirmed, but there are clues as to the biology of extraterrestrials in science. "Don't give them claws," says biologist E.O. Wilson. "Claws are for carnivores and you've got to be an omnivore to be an E.T. There just isn't enough energy available in the next trophic level down to maintain big populations and stable populations that can evolve civilization." In this compilation, Wilson, theoretical physicist Michio Kaku, Bill Nye, and evolutionary biologist Jonathan B. Losos explain why aliens don't look like us and why Hollywood depictions are mostly inaccurate. ---------------------------------------------------------------------------------- TRANSCRIPT: MICHIO KAKU: I love to watch science fiction movies but I cringe, I cringe whenever I see a depiction of the aliens. First of all, the aliens speak perfect English. ALIENS: Did you ever see such jerky looking creatures? And one head yet. Typical Earth men. MICHIO KAKU: I mean, we have Hollywood special effects so why can't we get better aliens? E.O. WILSON: I would admonish scriptwriters for Hollywood films that have space and alien monsters invading Earth. Don't give them claws. Claws are for carnivores and you've got to be an omnivore to be an ET. There just isn't enough energy available in the next trophic level down to maintain big populations and stable populations that can evolve civilization. JONATHAN B. LOSOS: Some people have gone so far as to say that, in fact, human type organisms, humanoids will occur on other planets. So there will be intelligent beings that if we saw them they would be recognizable which, of course, is what Hollywood tells us. If you watch almost any science fiction TV show or movie the intelligent life form is bipedal, a couple of arms, a mouth. Maybe they only have three fingers and pointy ears and they're green but they're pretty humanoid. And so some people say yes, that's actually very likely that humans are a very successful life form here on Earth that we are extremely well adapted to our environment which ancestrally was occurring on the plains of Africa, but we adapted so exquisitely that we now dominate the world. So if this is such a good adaptation here on Earth it would similarly be a good adaptation on another planet and evolution would be likely to take the similar course. That is the argument that is being made in some corners. KAKU: But when we look at aliens in the movies we're basically projecting our own consciousness in aliens. Our fears, our desires are projected and they are a mirror of who we are, not a mirror of who they really are. For example, if you take a look at a bat or a dog, the dog's brain is mainly interested in smells. It's swirling in a universe of smells while a bat's brain mainly is concentrated on sonar, on detecting clicks and echoes. The same thing with the dolphin brain. Their consciousness is totally different from our consciousness because they see things differently than us because of their evolutionary history. For example, when we see a cat and the cat comes up to us and starts to purr next to us we say to ourselves oh, nice cat. Cat is being affectionate. No, the cat is not being affectionate. It's simply rubbing its hormones on you and saying I own this human. This human is mine. I'm marking my territory. This human feeds me twice a day. I've trained him. So a cat sees the universe totally different than we do and yet we impose our thinking on an alien. WILSON: ET is out there. There just has to be in that hundred million star system. Here's what I did. I looked over the many examples of the origin of whole new lines of animals that have occurred on the land since the early Paleozoic. Here is what they all have in common. First, it has to be on the land. It can't develop advanced societies and anything like civilization. Well, why not? Why no marine fresh water creatures? Because they don't have fire. In order to build tools beyond chipping some rock or stone away you don't have any way to create more advanced technology without concentrated power source that you can transport from one place to another. ET. I'm now drawing this again from the record of multiple origins of animal lines on Earth. ET has got a head and the head is up front and the head contains central organizing centers for all of the senses that are spread out through the body... Read the full transcript at https://bigthink.com/videos/what-do-aliens-look-like

the SETI Institute and the Whale Sanctuary Project. What can animal intelligence tell us about the possibility of intelligent life elsewhere in the universe? And how can the ways we recognize intelligence on our own planet inform how we might interact with extraterrestrial intelligence? Related papers Landscape of Intelligence: https://whalesanctuaryproject.org/content/uploads/Landscape-of-Intelligence.pdf Cetacean Brain Evolution: http://whalesanctuaryproject.org/content/uploads/The-Cetacean-Brain-Evolution-Structure-and-Function.pdf Alien Mindscapes: https://www.liebertpub.com/doi/10.1089/ast.2016.1536 Quantum of Life: https://blogs.scientificamerican.com/observations/the-quantum-of-life/

Senior Astronomer Seth Shostak talks about the importance of exploration.

From "superhabitable planets" that can potentially sustain life longer than earth to rogue planets that don't even orbit a star, we’ve talked about some strange places that could host extraterrestrial life over the last few years. Here are some of our favorite episodes about them! Hosted by: Caitlin Hofmeister SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Kevin Bealer, Jacob, Katie Marie Magnone, D.A. Noe, Charles Southerland, Eric Jensen, Christopher R Boucher, Alex Hackman, Matt Curls, Adam Brainard, Scott Satovsky Jr, Sam Buck, Ron Kakar, Chris Peters, Kevin Carpentier, Patrick D. Ashmore, Piya Shedden, Sam Lutfi, Charles George, Christoph Schwanke, Greg ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Links to Original Episodes and Sources: Maybe Life Doesn't Need Water, After All https://www.youtube.com/watch?v=9HLqkJsXtM4 Life on an Eyeball Planet? It's Possible https://www.youtube.com/watch?v=9NOW3AormJc Could Life Survive Without a Star? https://www.youtube.com/watch?v=h4TTx-aBCt0 Silicon-Based Life: Could Living Rocks Exist? https://www.youtube.com/watch?v=fQCrrPohyts Are There Planets More Habitable Than Earth? https://www.youtube.com/watch?v=9xh1ZlemXYk

A recent paper published in ApJ makes the claim that there are 36 Civilization in our galaxy right now. What's the science behind the claim? Dr. Brian Keating spoke to the lead author of the paper, Prof. Chris Conselice, to find out. Watch our preview here and the full interview here: Watch the full interview on Brian Keating's Channel: https://www.youtube.com/watch?v=UqdDcCbjQn Please subscribe to Brian Keating's Channel! https://www.youtube.com/DrBrianKeating Visit Brian's website and join his mailing list for fun giveaways: https://BrianKeating.com Follow Brian Keating on Twitter: https://twitter.com/DrBrianKeating Follow Brian Keating on Instagram: https://www.instagram.com/DrBrianKeating/ #LiveAstronomy #DeepAstronomy #AstroBookshelf Join our Chat on Discord here: https://discord.gg/nqGpvtK Follow DeepAstronomy on Twitter: @DeepAstronomy Watch Tony's Twitch Tuesdays on Twitch: https://twitch.tv/DeepAstronomy

CHECK OUT WORLD ANVIL AND SUPPORT SPACEDOCK! https://worldanvil.pxf.io/vAgZy BECOME A CHANNEL MEMBER: https://www.youtube.com/channel/UCfjaAUlTZRHJapJmCT6eyIg/join THE SOJOURN - AN ORIGINAL SCI-FI AUDIO DRAMA: https://www.kickstarter.com/projects/spacedock/the-sojourn-season-one/ SUPPORT SPACEDOCK: https://www.patreon.com/officialspacedock?ty=h MERCHANDISE: https://teespring.com/en-GB/stores/spacedock-2 FACEBOOK: https://www.facebook.com/officialspacedock/?pnref=lhc TWITTER: https://twitter.com/SpacedockHQ TWITCH: https://www.twitch.tv/spacedockhq Do not contact regarding network proposals. Battlezone II Music by Carey Chico Spacedock does not hold ownership of the copyrighted materiel (Footage, Stills etc) taken from the various works of fiction covered in this series, and uses them within the boundaries of Fair Use for the purpose of Analysis, Discussion and Review.

New research reveals that massive amounts of radioactive material might actually be essential for life outside our solar system. » Subscribe to Seeker! http://bit.ly/subscribeseeker » Watch more Elements! http://bit.ly/ElementsPlaylist » Visit our shop at http://shop.seeker.com Huge amounts of radioactive material might not be so bad for life, after all. In fact, new research suggests that it might be exactly what some planets need to host life. Here on Earth, water facilitates all of the chemical reactions of life. When searching for other life out in the universe, it’s long been thought that the absolute most important thing a planet needs is, well, something like water. That means that we’ve also been looking for a planet that’s located within the ‘habitable zone’ of its star — meaning that it's not too close to fry in the heat of that star and have all its water sizzle off, and not so far that it’s left out in the cold with only frozen water. But new research turns this entire idea on its head. A team used modeling to find that at a certain size and with a high enough level of radioactive decay, a planet might not need a star to make it habitable, after all. Maybe all a planet needs is an abundant supply of radionuclides to keep itself warm. Radionuclides are isotopes, or different types of familiar-sounding elements like uranium, that are radioactive. Find out more about the role radiation might play in life outside our solar system in this Elements. #radiation #spaceexploration #solarsystem #space #star Read More: Life Beyond the Habitable Zone https://aasnova.org/2020/03/02/life-beyond-the-habitable-zone/ [W]e already know that habitable zones don’t tell the whole story. Plenty of planets that lie within their stars’ habitable zones aren’t livable — perhaps because they’re inhospitable gas giants, or because they have the wrong type of atmosphere, or because they’re routinely blasted by energetic stellar flares from their host. Could the opposite be true as well, however? Could planets outside of a star’s habitable zone be capable of supporting life? No star, no problem: Radioactivity could make otherwise frozen planets habitable https://www.sciencemag.org/news/2020/04/no-star-no-problem-radioactivity-could-make-otherwise-frozen-planets-habitable [R]esearchers have now proposed that some planets, particularly ones that form near the center of our Milky Way Galaxy, might possess enough of these radioactive isotopes to generate sufficient heat to keep their surfaces from freezing entirely solid. “That gives you the freedom to be anywhere,” says Avi Loeb, an astrophysicist at Harvard University and a co-author of the new study. “You don’t need to be close to a star.” On the Habitable Lifetime of Terrestrial Worlds with High Radionuclide Abundances https://arxiv.org/abs/1912.02862 One of the most widely used criteria for habitability is the existence of a suitable liquid solvent, based on which the concept of the habitable zone (HZ) was introduced. The HZ is defined as the region around the host star where liquid water can theoretically exist on the planet’s surface. It is, however, crucial to recognize that habitability is a broader concept than the HZ, implying that worlds outside the HZ may be habitable.

Today, we discuss the possibility of humanity being alone in the galaxy or perhaps even the greater universe. We consider just how improbable our existence is by evaluating both the number of potential sites for life within our galaxy alone as well as the probability of abiogenesis occurring elsewhere. ►Click here to subscribe: https://www.youtube.com/channel/UCB0fFWQLZ2oj-FaoDUG_wow?sub_confirmation=1 ►Written, Produced & Narrated by David ►Share this video: https://youtu.be/yyVJkbUbzxY Music: “Cylinder Five” by Chris Zabriskie “Cylinder Eight” by Chris Zabriskie “Stories About the World That Once Was” by Chris Zabriskie

The discovery of extraterrestrial life might face an impossible challenge: the physics of the universe itself. Stream Full Episodes of How the Universe Works: https://www.sciencechannel.com/tv-shows/how-the-universe-works/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Like us on Facebook: https://www.facebook.com/ScienceChannel Follow us on Twitter: https://twitter.com/ScienceChannel Follow us on Instagram: https://www.instagram.com/ScienceChannel/

A new study suggests that there are 36 alien civilisations LIVING IN THE MILKY WAY. In this video, Unveiled discovers just how close to alien life we might finally be... with scientists proposing that there are communicating, extraterrestrial species in our own galaxy! What do you think... Has the Milky Way already been colonized by alien life?? This is Unveiled, giving you incredible answers to extraordinary questions! Find more amazing videos for your curiosity here: Did Aliens Seed Life on Earth? - https://www.youtube.com/watch?v=MDjGiXEnKQ4 Did NASA Just Find Proof of Parallel Universes? - https://www.youtube.com/watch?v=p3GKLp0nxY4 Are you constantly curious? Then subscribe for more from Unveiled ► https://wmojo.com/unveiled-subscribe #Aliens #MilkyWay #CETI #SETI #Space #SolarSystem #Science

Senior Astronomer Seth Shostak addresses the findings of a new paper that suggests there are only 36 alien societies in our galaxy.

You can buy Universe Sandbox 2 here: http://amzn.to/2yJqwU6 Or get a shirt: https://teespring.com/stores/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about new research that tries to create a new alternative to the famous Kardashev scale and redefine our understanding of alien intelligence...as well as maybe answer the famous Fermi Paradox. Paper: https://arxiv.org/pdf/2005.13221.pdf Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath Space Engine is available for free here: http://spaceengine.org Enjoy and please subscribe. Twitter: https://twitter.com/WhatDaMath Facebook: https://www.facebook.com/whatdamath Twitch: http://www.twitch.tv/whatdamath Bitcoins to spare? Donate them here to help this channel grow! 1GFiTKxWyEjAjZv4vsNtWTUmL53HgXBuvu Alternatively, PayPal donations can be sent here: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DNKM9SDWU3B3Q&source=url The hardware used to record these videos: CPU: https://amzn.to/2LZFQCJ Video Card: https://amzn.to/2M1W26C Motherboard: https://amzn.to/2JYGiQQ RAM: https://amzn.to/2Mwy2t4 PSU: https://amzn.to/2LZcrIH Case: https://amzn.to/2MwJZz4 Microphone: https://amzn.to/2t5jTv0 Mixer: https://amzn.to/2JOL0oF Recording and Editing: https://amzn.to/2LX6uvU Some of the above are affiliate links, meaning I would get a (very small) percentage of the price paid. Thank you to all Patreon supporters of this channel Specifically, great thanks to the following members: Morrison Waud Vlad Manshin Mark Teranishi TheHuntress Ralph Spataro Albert B. Cannon Lilith Dawn Greg Lambros adam lee Gabriel Seiffert Henry Spadoni J Carter Jer Silver surfer Konrad Kummli Nick Dolgy UnexpectedBooks.com Mario Rahmani George Williams Shinne Jakub Glos Johann Goergen Jake Salo LS Greger Lyndon Riley Lauren Smith Michael Tiganila Russell Sears Vinod sethi Dave Blair Robert Wyssbrod Randal Masutani Michael Mitsuda Assaf Dar Sagol Liam Moss Timothy Welter MD Barnard Rabenold Gordon Cooper Tracy Burgess Douglas Burns Jayjay Volz Anataine Deva Kai Raphahn Sander Stols Bodo Graßmann Daniel Charles Smith Daniel G. Eugene Sandulenko gary steelman Max McNally Michael Koebel Sergio Ruelas Steven Aiello Victor Julian Castillo xyndicate Honey Suzanne Lyons Olegas Budnik Dale Andrew Darling Niji Peter Hamrak Matthew Lazear Alexander Afanasyev Anton Newman Anton Reed

There’s remarkable diversity in life on Earth. But, sometimes, we find an animal that really looks like it DIDN'T evolve on this planet. And if there was ever a creature which could be an ALIEN, it's the TARDIGRADE. In this video, Unveiled discovers just how strange and unique the tardigrade really is... while also exploring some theories which propose that it was originally an extraterrestrial life form! This is Unveiled, giving you incredible answers to extraordinary questions! Find more amazing videos for your curiosity here: What If We Prove Aliens Exist? - https://www.youtube.com/watch?v=BvnDyNuUyxs What If an Alien Pandemic Arrived on Earth? - https://www.youtube.com/watch?v=m5o3992BSfg Are you constantly curious? Then subscribe for more from Unveiled ► https://wmojo.com/unveiled-subscribe #Tardigrade #Alien #Science #Evolution #Nature #Tardigrades #LifeOnEarth #Weird