SOLAR SAILS

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

Welcome to the new style Q&As, which we're now recording every Monday live on my YouTube channel at 5pm Pacific Time. This week we got a lot of great questions about the Proxima Centauri signal, the Fermi Paradox, and Breakthrough Starshot. 00:00:00 Start 00:00:14 Is Starlink portable? 00:01:07 Any thoughts on the Wow signal? 00:03:58 What are magnetars? 00:06:20 Any followup planned on Proxima signal? 00:07:34 My answer to the Fermi Paradox 00:11:50 Why don't neutron stars turn into black holes? 00:13:03 Could Breakthrough Starshot confirm the Oort Cloud? 00:15:07 Can Breaththrough Starshot slow down? 00:20:03 Do other planets have pole stars? 00:20:45 Should we put a telescope out by Neptune or Uranus? 00:23:15 Next rare celestial event 00:26:12 Does Skylon have a future in space exploration? 00:30:35 How will humanity end? 00:33:47 Is Elon Musk a supervillain? 00:35:16 When can regular people do space tourism? 00:38:12 Am I up to date on the Expanse? 00:39:51 SG1 or the Expanse? 00:41:37 Does everything experience gravitational lensing? 00:44:07 What do I think of DALL-E? 00:47:18 Doing space journalism for 21 years 00:48:39 Space assembly of telescopes. 🚀 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.

Dr. Pekka Janhunen is a researcher with the Finnish Meteorological Institute and the inventor of the Electric Solar Wind Sail concept, using the solar wind as a propulsion system for spacecraft. These could allow spacecraft to explore many regions of the Solar System without any onboard propellant at all. More information about Dr. Janhunen: https://space.fmi.fi/~pjanhune/ Learn more about the concept in this video: https://www.youtube.com/watch?v=-pIl_cv3OkA Our Book is out! https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/ Audio Podcast version: ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2 RSS: https://www.universetoday.com/audio What Fraser's Watching Playlist: https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G Weekly email newsletter: https://www.universetoday.com/newsletter Weekly Space Hangout: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/ Astronomy Cast: https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg Support us at: https://www.patreon.com/universetoday More stories at: https://www.universetoday.com/ Twitch: https://twitch.tv/fcain Follow us on Twitter: @universetoday Like us on Facebook: https://www.facebook.com/universetoday Instagram - https://instagram.com/universetoday Team: Fraser Cain - @fcain / [email protected] Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw Chad Weber - [email protected]

Be one of the first 500 people to sign up with this link and get 20% off your subscription with Brilliant.org! https://brilliant.org/realengineering/ New streaming platform: https://watchnebula.com/ Vlog channel: https://www.youtube.com/channel/UCMet4qY3027v8KjpaDtDx-g Patreon: https://www.patreon.com/user?u=2825050&ty=h Facebook: http://facebook.com/realengineering1 Instagram: https://www.instagram.com/brianjamesmcmanus Reddit: https://www.reddit.com/r/RealEngineering/ Twitter: https://twitter.com/thebrianmcmanus Discord: https://discord.gg/s8BhkmN Get your Real Engineering shirts at: https://standard.tv/collections/real-engineering Credits: Writer/Director: Brian McManus Co-Writer/Editor: Co-Writer: Primal Space (https://www.youtube.com/channel/UClZbmi9JzfnB2CEb0fG8iew) Animator: Mike Ridolfi (https://www.moboxgraphics.com/) Sound: Graham Haerther (https://haerther.net/) Thumbnail: Simon Buckmaster https://twitter.com/forgottentowel References: [1] https://www.lpi.usra.edu/publications/newsletters/mercmessenger/issue10.pdf [2] http://bit.ly/2kqLiWY [3]http://www.planetary.org/explore/projects/lightsail-solar-sailing/story-of-lightsail-part-1.html [4] https://courses.lumenlearning.com/physics/chapter/29-4-photon-momentum/ [5] https://ccar.colorado.edu/scheeres/scheeres/assets/Theses%20and%20Abstracts/rios-reyes_dissertation.pdf [6]http://www.planetary.org/blogs/jason-davis/lightsail-2-successful-flight-by-light.html [7] https://core.ac.uk/download/pdf/46702113.pdf [8] http://bit.ly/2ku7GPp [9] https://strathprints.strath.ac.uk/31455/1/Macdonald_M_Pure_Solar_sailing_applications_and_technology_advancement_Feb_2011.pdf https://pdfs.semanticscholar.org/5c87/f248e68d3f666d55e94888013f32f92ebaa2.pdf [10] https://ccar.colorado.edu/scheeres/scheeres/assets/Theses%20and%20Abstracts/rios-reyes_dissertation.pdf Thank you to AP Archive for access to their archival footage. Music by Epidemic Sound: http://epidemicsound.com/creator Songs: Forgotten Years - Trevor Kowalski Superior - Silver Maple Keep It Running - Imprismed Atomic Numbers 1 - August Wilhelmsson Satellites - Ebb & Flod Pulsar - Jakob Ahlbom Thank you to my patreon supporters: Adam Flohr, Henning Basma, Hank Green, William Leu, Tristan Edwards, Ken Coltan, Andrew McCorkell, Ian Dundore, John & Becki Johnston. Nevin Spoljaric, Jason Clark, Devin Rathbun, Thomas Barth, Paulo Toyosi Toda Nishimura

You can buy Universe Sandbox 2 game here: http://amzn.to/2yJqwU6 Hello and welcome! My name is Anton and in this video, we will talk about the Lightsail 2 mission achievements as well as whether we could use solar sails to travel the solar system. The site I used for calculations: https://trajbrowser.arc.nasa.gov/ 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 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 Thank you to all Patreon supporters of this channel Specifically, great thanks to the following members: Mark Teranishi Morrison Waud Vlad Manshin Mayumi Daniel Rosvall Lilith Dawn Richard Colombo Greg Lambros Albert B. Cannon Nick Dolgy Bartholomew Macaluso Luminger Ralph Spataro Henry Spadoni Jer UnexpectedBooks.com adam lee Alex M Konrad Kummli Lauren Smith Michael Tiganila Lyndon Riley George Williams Shinne Jakub Glos Dave Blair Michael Mitsuda Johann Goergen Jake Salo LS Greger Marcel Levi Russell Sears Vinod sethi Gordon Cooper Robert Wyssbrod Tracy Burgess Kai Raphahn Sander Stols Daniel S. Gabriel Seiffert J Carter Jayjay Volz L Joseph Parker MD Mary Kristof RandalM Sergio Ruelas Anataine Deva Olegas Budnik Assaf Dar Sagol Bodo Graßmann Brian Szkotak gary steelman Liam Moss Michael Koebel Shelley Passage Steven Aiello Timothy Welter MD xyndicate Honey Suzanne Lyons Dale Andrew Darling James Myers Niji Peter Hamrak Matthew Lazear Becky Steven Anton Newman Anton Reed Bill Codair Charles Nadeau Dave A Doug Baker Doug MacDonald Douglas Burns George Lincoln Rockwell GrittyFlix Jan Šoulák Minovsky Man Mr Fluffington Paul Koploy Sal Carrera Jacob Spencer Veronika A. Czebe Steve Wotton brian plummer Lee Densmore Sir David Coyne Daniel Coleman Rock Howard Vincent L. Cleaver Claye Griffith David Lewis Howard Zhang JohnTaylorWalker Kyle eagle Michael J Fluharty Tarik Qassem Aaron Fineout Adam Smith Alberto Diaz Saldana Chaos Gamer Daniel Charles Smith Daniel G. Eugene Sandulenko Kearny Li Marcin Jan Max McNally Rafael Aguila Victor Julian Castillo Tedd Speck Greyson Flippo Hampton Tunis Ivan Gallagher Janne Vuorenpää Jordaen Davids Lynn Johnson Mr. M-Bag rfc1135 Rob Law Scary ASMR Thierry Ray Jehlen Gasnier Troy Schmidt William Warren Arikkat Unnikrishnan Uwe Böhnke Arp Lee Carla Deanna Korell-Hall Dipen Bhattacharya Josh Shultz Lisa Stadlbauer Lisette Ramos-Voigt Márton Fülöp Reynir Bachmann Rs Wlms Samuel Mathison tom g. Redouan Ahaloui Brittany House david jungerman Doug Beeferman JL Solidum Luis M Gaytan Tovar Men I Trust Sol Bergeron Beauchemin Hernán Coronel David Bennett Jana Persson Lionel Sleeper Markus Bidi Martin Swiaczny Matthew C Weiss www.squidlord.us Orlando J Carter Peter Sedmák Vladyslav Kurmaz Christopher Borra Ingmar Rauschert karlos preddie Luis Lengsfeld Lumi Pakkanen Miek Thompson steven Susanne Bauer Yvan Lengwiler Todd Gregory-Gibbs Adam Burnett Andy DeLay Cameron Arno Christian Rane Jan-Chris john requa Joseph Conard Józio&Olaf kristian svensson Qauthar Saleh Tuukka Arola Branden Loizides Chris B Dave Hein Spijker JAMES KNIGGE James McClarty Kitara Burke Lance Fielden Laura Coutu MARK ANDERSON Michael R Mendoza [email protected] Robert Clyde Steven Uttley Suzanne Brummitt Tim Jones Łukasz Adamski Marcel Barros Bonnie Veldey Brad R Christian Jochum Daniel Morris Dreameroutthere Jeff Blakemore John Manderson (JohnnyBoy) Maciej Świerczewski Mahesh Gopalan Marilyn Aldridge Paul Maybury Richard Reich RiddleJacks Sean Spartan Check the Patreon page to join.

Did you know that photons from the sun can push a spacecraft? This isn't solar power, it's solar sailing! Mat Kaplan of the Planetary Society shares the incredible journey of Light Sail 2 with All Space Considered. All Space Considered is Griffith Observatory’s live science program that is free and open to the public, held the first Friday of every month. Subscribe now for more All Space Considered clips: https://www.youtube.com/subscription_center?add_user=griffithobservatory Watch All Space Considered videos: https://www.youtube.com/griffithobservatory Learn more about All Space Considered on our official site: http://griffithobservatory.org/asc/all_space.html Follow All Space Considered on SOCIAL MEDIA: Twitter: https://twitter.com/allspacecnsdrd Facebook: https://www.facebook.com/AllSpaceConsidered/ Instagram: https://www.instagram.com/allspaceconsidered/ -Disclaimer- WE DO NOT OWN THE RIGHTS TO THE, VIDEOS, MUSICAL MATERIAL OR PICTURES PRESENT THAT WERE NOT CREATED DIRECTLY BY GRIFFITH OBSERVATORY OR ITS AFFILIATES, ALL CREDIT FOR THIS MATERIAL GOES TO THE ORIGINAL ARTISTS, CREATORS AND COMPOSERS. Fair Use: "Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use."

Lightsail 2 was launched in June as part of the STP-2 launch on Falcon Heavy, after a few weeks of checking systems out it deployed its solar sail and began attempting to raise its orbit. Earlier this week the Planetary Society declared success - raising the apogee of the orbit higher, even if the orbit on average got lower due to atmospheric drag.

Support the show: http://www.patreon.com/pmsutter Call in an leave a voicemail: http://www.spaceradioshow.com The latest space and science news you crave, and of course listener questions! Support the show: http://www.patreon.com/pmsutter All episodes: http://www.SpaceRadioShow.com Follow on Twitter: http://www.twitter.com/PaulMattSutter Like on Facebook: http://www.facebook.com/PaulMattSutter Watch on YouTube: http://www.youtube.com/PaulMSutter Big thanks to my top Patreon supporters this month: Robert R., Justin G., Matthew K., Kevin O., Justin R., Chris C., Helge B., Tim R., SkyDiving Storm Trooper, Steve P., Lars H., Khaled T., John F., Mark R., and David B.! Produced by Greg Moebius at WCBE Radio Columbus. Hosted by Paul M. Sutter, astrophysicist at The Ohio State University, Chief Scientist at COSI Science Center, and the one and only Agent to the Stars (http://www.pmsutter.com). Intro music: https://www.bensound.com

Where you can travel in space depends on how much propellant you’ve got on board your rocket and how efficiently you can use it. But there’s a source of free propellant right here in the Solar System - the Sun - which is streaming out photons in all directions. You just need to catch them. And right now, the Planetary Society’s new LightSail 2 spacecraft is testing out just how well it’ll work. Light Sail 2 Photos: http://www.planetary.org/blogs/jason-davis/lightsail-2-team-continues-tweaks-tests.html Episode on Breakthrough Starshot https://www.youtube.com/watch?v=3FWcEtXgK2g&list=PLbJ42wpShvml6Eg22WjWAR-6QUufHFh2v&index=146 Episode on Project Dragonfly https://www.youtube.com/watch?v=598UtgxFd1E&list=PLbJ42wpShvml6Eg22WjWAR-6QUufHFh2v&index=23 Audio Podcast version: ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2 RSS: https://www.universetoday.com/audio What Fraser's Watching Playlist: https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G Weekly email newsletter: https://www.universetoday.com/newsletter Support us at: http://www.patreon.com/universetoday More stories at: http://www.universetoday.com/ Twitch: https://twitch.tv/fcain Follow us on Twitter: @universetoday Like us on Facebook: https://www.facebook.com/universetoday Instagram - http://instagram.com/universetoday Team: Fraser Cain - @fcain / [email protected] Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw Chad Weber - [email protected] References: https://www.quora.com/What-is-the-maximum-speed-a-chemical-rocket-can-achieve http://www.planetary.org/blogs/jason-davis/lightsail-2-has-launched.html http://www.planetary.org/blogs/jason-davis/lightsail-2-team-continues-tweaks-tests.html https://arc.aiaa.org/doi/abs/10.2514/6.2014-4435 https://www.nasa.gov/content/nea-scout https://www.hou.usra.edu/meetings/lpsc2018/pdf/1406.pdf http://www.planetary.org/blogs/guest-blogs/2017/20170925-solar-sail-dsg.html

Cheer along with Bill Nye and the flight controllers as The Planetary Society’s LightSail 2 spacecraft successfully deploys its solar sail in space. http://sail.planetary.org "Subscribe to our YouTube Channel: http://planet.ly/ytsubscribe Follow us! Facebook: http://www.facebook.com/planetarysociety Twitter: http://www.twitter.com/exploreplanets Instagram: http://www.instagram.com/planetarysociety On the web: http://www.planetary.org ---- Join us: http://www.planetary.org/join Stay in touch with our monthly e-newsletter: http://www.planetary.org/connect About The Planetary Society: The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world's citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded the Planetary Society in 1980. Bill Nye, a longtime member of the Planetary Society's Board, serves as CEO."

This video shows brief highlights from LightSail 2, a crowdfunded space mission by The Planetary Society launching in June 2019. LightSail 2 aims to become the first spacecraft in Earth orbit propelled solely by sunlight. The goal is to raise LightSail 2’s orbit by a measurable amount, showing that solar sailing is a viable means of propulsion for CubeSats—small, standardized spacecraft that are part of a global effort to lower the cost of space exploration. For more, visit sail.planetary.org.

The distances between stars are so vast, it’s hard to wrap your mind around it. Even our far flung Voyagers have barely reached interstellar space, and would take tens of thousands of years to get to even the nearest star. But scientists and engineers are considering what it would actually take to send a spacecraft to another star. It’s called Project Dragonfly, and would use existing or near future technologies to send a 3,000 kg spacecraft to Alpha Centauri within 100 years. Project Dragonfly paper https://www.sciencedirect.com/science/article/pii/S0094576517319136?dgcid=rss_sd_all#! Audio Podcast version: ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2 RSS: https://www.universetoday.com/audio Video Podcast version: ITunes: https://itunes.apple.com/bh/podcast/universe-today-video/id794057165?mt=2 RSS: https://www.universetoday.com/video What Fraser's Watching Playlist: https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G Weekly email newsletter: https://www.universetoday.com/newsletter Support us at: http://www.patreon.com/universetoday More stories at: http://www.universetoday.com/ Twitch: https://twitch.tv/fcain Follow us on Twitter: @universetoday Like us on Facebook: https://www.facebook.com/universetoday Google+ - https://plus.google.com/+universetoday/ Instagram - http://instagram.com/universetoday Team: Fraser Cain - @fcain / [email protected] Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw Chad Weber - [email protected] Chloe Cain - Instagram: @chloegwen2001 References: https://www.sciencedirect.com/science/article/pii/S0094576517319136?dgcid=rss_sd_all#! https://i4is.org/ https://theconversation.com/worlds-most-powerful-laser-is-2-000-trillion-watts-but-whats-it-for-45891 http://casa.colorado.edu/~danforth/science/magsail/magsail.html

Welcome to the live stream of TMRO. Here you will find our TMRO:Space and TMRO:Science shows. Welcome, pull up a chair, grab some popcorn and join in the conversation! === CONTINUE THE CONVERSATION === Twitter.com/TMRO Facebook.com/TMROTV YouTube.com/TMRO Reddit.com/r/tmro Twitch.tv/TMRO TMRO.tv === OUR REAL-TIME DISCORD CHANNEL === All of the TMRO Shows are created and maintained in our Discord channel. Escape Velocity Patrons have access to a special room, but we also have free #general rooms that anyone can participate in. Join in for free at https://discord.gg/9NkkFWD === TMRO IS CROWD FUNDED === TMRO:Space is a crowd funded show. If you like this episode consider contributing to help us to continue to improve. Head over to http://www.patreon.com/tmro or http://www.makersupport.com/tmro for information plus our all new goals and reward levels

Professor Avi Loeb is one of the hardest working astrophysicists in the field, writing a blistering number of academic papers on fascinating topics like the Fermi Paradox, the habitability of other worlds, black holes, and the history of the early universe. He's also one of the people working on the Breakthrough Starshot project to send tiny probes to other star systems. https://www.cfa.harvard.edu/~loeb/ 00:17 Our biggest disagreement. The name for Milky Way and Andromeda 02:55 How to prevent losing stars in the future. 03:30 Introduction to Dr. Avi Loeb, the hardest working person in astrophysics 08:25 Breakthrough starshot, traveling to other stars 15:33 How will they communicate back to Earth? 19:15 Why aren't we doing to use them in the Solar System first? 24:48 How will they slow down? 27:21 What kind of camera could we use? 30:13 What could we do to create a laser highway? 34:26 Searching for life is a scientific question 37:00 More water worlds than terrestrial planets. 41:52 Galactic panspermia 44:49 Fighting against our dark energy future. 49:20 Joining the galaxy cluster 51:49 When will we see the first pictures from the Event Horizon Telescope Audio Podcast version: ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2 RSS: https://www.universetoday.com/audio Video Podcast version: ITunes: https://itunes.apple.com/bh/podcast/universe-today-video/id794057165?mt=2 RSS: https://www.universetoday.com/video What Fraser's Watching Playlist: https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G Weekly email newsletter: https://www.universetoday.com/newsletter Support us at: http://www.patreon.com/universetoday More stories at: http://www.universetoday.com/ Twitch: https://twitch.tv/fcain Follow us on Twitter: @universetoday Like us on Facebook: https://www.facebook.com/universetoday Google+ - https://plus.google.com/+universetoday/ Instagram - http://instagram.com/universetoday Team: Fraser Cain - @fcain / [email protected] Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw Chad Weber - [email protected] Chloe Cain - Instagram: @chloegwen2001

The LightSail 2 team gathered in Cal Poly San Luis Obispo on July 17 and 18 for a Mission Readiness Review (MRR) and Operational Readiness Test (ORT). The MRR is a general review to get everyone on the same page before launch, and the ORT is a dress rehearsal to simulate key mission events using a clone of the spacecraft. "Subscribe to our YouTube Channel: http://planet.ly/ytsubscribe Follow us! Facebook: http://www.facebook.com/planetarysociety Twitter: http://www.twitter.com/exploreplanets Instagram: http://www.instagram.com/planetarysociety On the web: http://www.planetary.org ---- Join us: http://www.planetary.org/join Stay in touch with our monthly e-newsletter: http://www.planetary.org/connect About The Planetary Society: The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world's citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded the Planetary Society in 1980. Bill Nye, a longtime member of the Planetary Society's Board, serves as CEO."

Solar sails could shorten space travel time by thousands of years. By using the power of the sun, photons bounce against the sail and give it a push to propel the satellite to it's destination. NASA plans to test the solar sails to take a closer look at near earth asteroids. Subscribe to Cheddar on YouTube: http://chdr.tv/subscribe Read more about the the NASA testing here: https://www.nasa.gov/centers/marshall/news/nasa-tests-solar-sail-deployment-for-asteroid-surveying-nea-scout Connect with Cheddar! On Facebook: http://chdr.tv/facebook On Twitter: http://chdr.tv/twitter On Instagram: http://chdr.tv/instagram On Cheddar.com: http://chdr.tv/cheddar

William Shatner sends a message to Voyager 1, Cassini crashes into Saturn, asteroid-seeking OSIRIS-REx gets a gravity assist, and The Planetary Society's citizen-funded solar sailing spacecraft LightSail® 2 is making news again. Robert Picardo is here to tell you all about it in this month's Planetary Post. Get space updates delivered straight to your inbox: http://planet.ly/TI0Pf Subscribe to our YouTube Channel: http://planet.ly/ytsubscribe Follow us! Facebook: http://www.facebook.com/planetarysociety Twitter: http://www.twitter.com/exploreplanets Instagram: http://www.instagram.com/planetarysociety On the web: http://www.planetary.org Join us: http://planet.ly/rfzIS About The Planetary Society: The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world's citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded the Planetary Society in 1980. Bill Nye, a longtime member of the Planetary Society's Board, serves as CEO.

This animation details the piece by piece construction of the LightSail 2 spacecraft as well as its maneuvers in space. Learn more at sail.planetary.org. Subscribe to our YouTube Channel: http://planet.ly/ytsubscribe Follow us! Facebook: http://www.facebook.com/planetarysociety Twitter: http://www.twitter.com/exploreplanets Instagram: http://www.instagram.com/planetarysociety On the web: http://www.planetary.org Join us: http://www.planetary.org/join Stay in touch with our monthly e-newsletter: http://www.planetary.org/connect About The Planetary Society: The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world's citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded the Planetary Society in 1980. Bill Nye, a longtime member of the Planetary Society's Board, serves as CEO.

LightSail 2, a citizen-funded spacecraft by The Planetary Society, will demonstrate to the space community that solar sailing is a viable and inexpensive way of navigating the cosmos. Learn more at sail.planetary.org. Voiceover: In 2015, The Planetary Society, the world’s largest non-profit space organization, launched its citizen funded spacecraft, LightSail 1. The test spacecraft successfully deployed its reflective mylar sails, proving that our sail deployment technology works. Now we are taking the next step with LightSail 2. We will demonstrate to the space community that solar sailing really works and is an inexpensive way of navigating the cosmos. We’ll be launching on onboard the SpaceX Falcon Heavy, the world’s most powerful operational rocket. LightSail 2 will go deeper into space and attempt the first controlled solar sail flight in Earth orbit. The world will be watching as our little satellite propels us into the future of space exploration. Subscribe to our YouTube Channel: http://planet.ly/ytsubscribe Follow us! Facebook: http://www.facebook.com/planetarysociety Twitter: http://www.twitter.com/exploreplanets Instagram: http://www.instagram.com/planetarysociety On the web: http://www.planetary.org Join us: http://www.planetary.org/join Stay in touch with our monthly e-newsletter: http://www.planetary.org/connect About The Planetary Society: The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world's citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded the Planetary Society in 1980. Bill Nye, a longtime member of the Planetary Society's Board, serves as CEO.

Bill Nye talks solar sailing with LightSail 2 on Facebook Live with Bruce Betts and Danielle Gunn. Featuring a special appearance from Robert Picardo. Support the LightSail mission at planetary.org/launchpad Filmed live on Sept 7th, 2017 from Planetary Society headquarters in Pasadena, CA. Subscribe to our YouTube Channel: http://planet.ly/ytsubscribe Follow us! Facebook: http://www.facebook.com/planetarysociety Twitter: http://www.twitter.com/exploreplanets Instagram: http://www.instagram.com/planetarysociety On the web: http://www.planetary.org Join us: http://www.planetary.org/join Stay in touch with our monthly e-newsletter: http://www.planetary.org/connect About The Planetary Society: The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world's citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded the Planetary Society in 1980. Bill Nye, a longtime member of the Planetary Society's Board, serves as CEO.