INTERSTELLAR ‘OUMUAMUA’ (1i-2017-U1)

On this episode of StarTalk Radio, Neil deGrasse Tyson, comic co-host Chuck Nice, and cosmochemist and author Natalie Starkey answer fan-submitted Cosmic Queries about ‘Oumuamua, the first detected interstellar object that passed through the solar system.  To start, Chuck wonders why we even study space rocks if they’re all the “same.” Natalie tells us how studying space rocks helps us understand our solar system when studying Earth only tells us so much. You’ll learn why asteroids might be the leftover building blocks from planets. We ponder what might be hiding in the Oort Cloud and why ‘Oumuamua is basically an interstellar vagabond.  You’ll find out more about ‘Oumuamua’s discovery and how it got its name. We also talk about the only other interstellar object we’ve documented (so far). What is the likelihood we will see another interstellar object? Natalie explains the difficult task of looking in the right place at the right time since interstellar objects can, literally, come from anywhere.  How do we differentiate an interstellar comet from a comet that came from the Oort Cloud? We explore the idea of panspermia. Could life survive such a perilous journey similar to ‘Oumuamua’s? Lastly, Natalie helps us understand why ‘Oumuamua’s shape is so peculiar. All that, plus, we ask the obvious question: was it sent by aliens? Thanks to our Patrons Christopher Sukhanenya, Dmitry Pugachevich, Eugenio Barrera, Colton Cichocki, Brad Sofka, Atle Beckmann, Alex Prieto, Dorothy Papadakos, Steven Bunevitch, and Johnathan Bynog 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

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

'Oumuamua: A Mysterious Interstellar Interloper Dr. Amaya Moro-Martin, Space Telescope Science Institute During the formation of our solar system, a tremendous number of asteroids, comets, and planetesimals were ejected into interstellar space by gravitational encounters. If extrasolar planetary systems, which are now known to be quite common, experienced a similar development, then our galaxy should be teeming with these expelled objects. Astronomers were perplexed that none had been found passing through our solar system. Then, in 2017, the discovery of ‘Oumuamua transformed the situation from puzzlement to bewilderment. Observations with a wide range of telescopes followed the brightness and trajectory of this first interstellar interloper but left important questions about its origin and composition unanswered. Further, what process was responsible for the non-gravitational acceleration found in its unbound orbit? This cosmic visitor will not return to provide explanations. Thus, the intriguing inquiries ‘Oumuamua left behind will remain as we seek out and study other guests from beyond our solar system. Host: Dr. Frank Summers, Space Telescope Science Institute Recorded live on Tuesday, July 7, 2020. More information: www.stsci.edu/public-lectures

The European Southern Observatory used many of its telescopes to study 1I/'Oumuamua and 2I/Borisov, the first interstellar objects humanity has discovered flying through our solar system. -- Why Was 'Oumuamua So Weird? New Research Tries to Track Its Origins:(https://www.space.com/interstellar-object-oumuamua-origins-explored.html) Strange ingredient in interstellar Comet Borisov offers a clue to its origins (https://www.space.com/interstellar-comet-2i-borisov-strange-composition-discovery.html) Credit: ESO

By using ESO telescopes and other facilities, astronomers often glance into far-away planetary systems to gather clues about them. But, on rare occasions, scientists get to study these distant systems by looking much closer to home, when visitors from other corners of our galaxy drop by our Solar System. Meet the First Interstellar Visitors. Download this video on various formats on: https://www.eso.org/public/videos/esocast224a/ Credit: ESO Directed by: Herbert Zodet. Editing: Herbert Zodet. Web and technical support: Gurvan Bazin and Raquel Yumi Shida. Written by: Caitlyn Boungiorno, Caroline Reid, Herbert Zodet and Bárbara Ferreira. Narration: Sara Mendes da Costa. Music: Johan B. Monell ( www.johanmonell.com ) – The Enemy Within 2.0 and STAN DART ( www.stan-dart.com ) – Reflections. Footage and photos: ESO, M. Kornmesser, L. Calçada, Gennady Borisov, N. Risinger ( skysurvey.org ), NASA, ESA/Hubble, D. Jewitt (UCLA), Space Engine ( spaceengine.org ), C. Malin ( christophmalin.com ), B. Tafreshi ( twanight.org ), Y. Beletsky (LCO), M. Zamani and Daniele Gasparri (www.astroatacama.com ) . Scientific consultants: Paola Amico, Olivier Hainaut and Mariya Lyubenova.

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 a new study that suggests 'Oumuamua may have been a strange hydrogen ice object. Paper: https://arxiv.org/abs/2005.12932 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

Is Oumuamua a giant snowflake? An exploration into the possibility that it might be an icy fractal. My Patreon: https://www.patreon.com/johnmichaelgodier My Talk Show Channel: https://www.youtube.com/eventhorizonshow Papers: "The interstellar object 'Oumuamua as a fractal dust aggregate", Flekkoy et al, 2019 https://arxiv.org/abs/1910.07135 Music: Cylinder Eight by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://chriszabriskie.com/cylinders/ Artist: http://chriszabriskie.com/

Senior Astronomer Seth Shostak explains how to get your name associated with an astronomical object such as asteroids, comets, and stars.

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 other interstellar objects similar to Oumuamua and Borisov comets and one specific comet that may have come from a stellar sibling nearby. Paper: https://arxiv.org/pdf/1908.02666.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. Music: Home - We're Finally Landing - https://www.last.fm/music/Home 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: Morrison Waud Mark Teranishi Vlad Manshin TheHuntress Daniel Rosvall Alex M Lilith Dawn Greg Lambros Albert B. Cannon Ralph Spataro adam lee Bartholomew Macaluso Nick Dolgy Henry Spadoni Jer Luminger UnexpectedBooks.com Konrad Kummli Lauren Smith Michael Tiganila George Williams Lyndon Riley Shinne Jakub Glos Johann Goergen Dave Blair Jake Salo LS Greger Marcel Levi Michael Mitsuda Gabriel Seiffert J Carter Mary Kristof Russell Sears Vinod sethi Brian Szkotak Robert Wyssbrod Gordon Cooper L Joseph Parker MD RandalM Tracy Burgess Jayjay Volz Kai Raphahn Sander Stols Sergio Ruelas Anataine Deva Assaf Dar Sagol Liam Moss Timothy Welter MD Olegas Budnik Bodo Graßmann gary steelman Michael Koebel Shelley Passage Steven Aiello xyndicate Honey Suzanne Lyons Dale Andrew Darling Douglas Burns James Myers Jan Šoulák Niji Peter Hamrak Matthew Lazear Becky Steven Anton Newman Charles Nadeau Dave A Doug Baker Doug MacDonald George Lincoln Rockwell GrittyFlix Minovsky Man Mr Fluffington Paul Koploy Sal Carrera Jacob Spencer Veronika A. Czebe brian plummer Daniel Charles Smith Daniel G. Eugene Sandulenko Lee Densmore Max McNally Sir David Coyne Steve Wotton Victor Julian Castillo Daniel Coleman Rock Howard Aaron Fineout Adam Smith Alberto Diaz Saldana Chaos Gamer Kearny Li Rafael Aguila Vincent L. Cleaver Claye Griffith David Lewis JohnTaylorWalker Kyle eagle Michael J Fluharty Tarik Qassem Tedd Speck rfc1135 Greyson Flippo Hampton Tunis Ivan Gallagher Janne Vuorenpää Jordaen Davids Lynn Johnson Rob Law Scary ASMR Thierry Gasnier Troy Schmidt William Warren Arp Lee Jana Persson Lisa Stadlbauer Lisette Ramos-Voigt Márton Fülöp Reynir Örn Guðmundsson Rs Wlms tom g. Arikkat Unnikrishnan Uwe Böhnke Carla Deanna Korell-Hall Dipen Bhattacharya Josh Shultz Samuel Mathison Brittany House David Bennett david jungerman Doug Beeferman JL Solidum Lionel Sleeper Luis M Gaytan Tovar Markus Bidi Martin Swiaczny Matthew C Weiss www.squidlord.us Men I Trust Michael McCloskey Orlando J Carter Peter Sedmák Sol Bergeron Beauchemin Vladyslav Kurmaz Hernán Coronel Christopher Borra Ingmar Rauschert karlos preddie Luis Lengsfeld Lumi Pakkanen Miek Thompson Susanne Bauer Yvan Lengwiler Branden Loizides Bryan Linsley Chris Bingley Chris the Mad Sciencer Dave David Wortz Douglas Wilkinson Hein Spijker James McClarty John Smith Kitara Burke Lance Fielden Laura Coutu MARK ANDERSON Michael R Mendoza Mr. Numi Who- [email protected] Randall J Silva Robert Clyde Steven Uttley Suzanne Brummitt Todd Gregory-Gibbs Walter van der Kamp Łukasz Adamski Adam Burnett Cameron Arno Christian Rane gene valle Jan-Chris Jelle Baris john requa Joseph Conard kristian svensson Qauthar Saleh Tuukka Arola Marcel Barros Bonnie Veldey Christian Jochum Daniel Morris Dreameroutthere Jeff Blakemore Maciej Świerczewski Mahesh Gopalan Marilyn Aldridge Paul Maybury Richard Reich RiddleJacks Sean Spartan Allen DuBeau Bob Goswick Daniel Schakel Derek Bamber Gerald Williams Gideon Falta Gregory T Hart Michael Luce Peyton Vaughn Quasar Robert the Green Sandy Flowers JoachimB Alec Estrada Devonte Foy Gawen Thompson Jessica Ketan More Kevin McCarthy Nina and Ivan PartyMartyy & Dem OTF Bois Patrick Denny PAUL G STEWART Sander Hollebrand Suzanne Miezis Galen Thurber Check Patreon to join!

Where is Oumuamua? A new interview with Darryl Seligman from the astronomy department at Yale with an update on the subject of Oumuamua. We detail his findings that the interstellar object Oumuamua is an extremely strange object with unknown origins, though there has been some progress in determining it’s shape and composition. Also, ESO has decided on a comet intercept mission that will target interstellar object over the next decade. Mysterious 'Oumuamua interstellar object may have simple explanation after all https://www.nbcnews.com/mach/science/mysterious-oumuamua-interstellar-object-may-have-simple-explanation-after-all-ncna985466 https://www.darrylseligman.com/ On the Anomalous Acceleration of 1I/2017 U1 `Oumuamua https://arxiv.org/abs/1903.04723 "COULD SOLAR RADIATION PRESSURE EXPLAIN ‘OUMUAMUA’S PECULIAR ACCELERATION?", Bialy and Loeb, 2018 https://arxiv.org/pdf/1810.11490.pdf The Mysterious Interstellar Object Omuamua With Harvard’s Dr. Avi Loeb https://youtu.be/rDZyI83Bj2w Website: https://www.eventhorizonshow.com/ You can now support us on Patreon https://www.patreon.com/EventHorizonShow Follow us on Twitter https://twitter.com/jmgeventhorizon Follow us on Instagram https://www.instagram.com/jmgeventhorizon/

A Strange Object Found In Space ► Subscribe: https://goo.gl/r5jd1F Astronomers have cataloged eight planets, 6,500 comets and more than 525,000 asteroids, but a mysterious thing happened on October 19, 2017 in Hawaii that grabbed the attention of millions of people and scientists around the world because what they discovered was unlike anything seen before. The first ever recorded interstellar object was found to have entered our solar system somewhere from deep space. It was given the name Oumuamua, named after the Hawaiian term for ‘scout’ or ‘messenger from afar’, and its path showed that it was not gravitationally bound to our own solar system. But what was this strange object, and where did it come from? #space #objects #strangespace

Was Oumuamua an alien spaceship? No. Here’s what it is. New videos DAILY: https://bigth.ink Join Big Think Edge for exclusive video lessons from top thinkers and doers: https://bigth.ink/Edge ---------------------------------------------------------------------------------- Oumuamua, a quarter-mile long asteroid tumbling through space, is Hawaiian for "scout", or "the first of many".It was given this name because it came from another solar system. Some claimed 'Oumuamua was an alien technology, but there's no actual evidence for that. ---------------------------------------------------------------------------------- MICHELLE THALLER: Dr. Michelle Thaller is an astronomer who studies binary stars and the life cycles of stars. She is Assistant Director of Science Communication at NASA. She went to college at Harvard University, completed a post-doctoral research fellowship at the California Institute of Technology (Caltech) in Pasadena, Calif. then started working for the Jet Propulsion Laboratory's (JPL) Spitzer Space Telescope. After a hugely successful mission, she moved on to NASA's Goddard Space Flight Center (GSFC), in the Washington D.C. area. In her off-hours often puts on about 30lbs of Elizabethan garb and performs intricate Renaissance dances. For more information, visit NASA. ---------------------------------------------------------------------------------- TRANSCRIPT: MICHELLE THALLER: In 2017, we discovered the first visitor to our solar system that actually came from another star. This is really true. We discovered a really interesting type of asteroid-- a rock flying through space. And it was something that we'd never seen before. We knew for a fact that this rock could not have come from our solar system. It was going so fast that it had enough velocity to escape the Sun's gravity entirely. In fact, when it went past the Sun, in late 2017, at top speed it was going 196,000 miles an hour. That's by far enough velocity to completely go away from the Sun's gravity and go all the way out into interstellar space. Now, this object was discovered by a program called Pan-STARRS, which is run by the University of Hawaii. It's a telescope that looks for near-Earth objects, as partially funded by NASA. NASA actually scans the sky, looking for asteroids. We want to make sure the earth is never under any threat from an asteroid that might be coming near us. We're also very interested scientifically in where the asteroids are and how they formed. It was named 'Oumuamua. And that's the Hawaiian word for scout-- the first arriving of many. And this was the first thing we'd ever seen from another star. So the idea of being the first, being a scout was a wonderful and poetic thing to name this thing. To give you a sense of how unusual 'Oumuamua is, we know that it's a rock like an asteroid in our solar system, but it has a completely different shape. We've never seen anything in our solar system that looks like this. It's about a quarter of a mile long, and it's actually elongated like a cigar. It's 10 times as long as it is wide, and we know that it's tumbling through space. It actually tumbles and rotates around its axis about once every seven hours. Now, that means it's tumbling pretty fast. So in order to stay together and not just fly apart, it must be pretty rigid, made of rock or even something metallic. So it's a hard object, elongated, tumbling through space at incredible speeds. There also is something mysterious that happened as this object left our solar system. It's actually now around the orbit of Jupiter. And that is it changed its trajectory just a tiny little bit. It actually sped up a tiny little bit as it went away from the Sun. And that wasn't expected. We've seen that sort of behavior from things like comets. That when comets have a bit of gas or something trapped under the surface and the Sun warms it up, you can get a little jet that comes off the comet-- a little jet of gas that changes its velocity. We didn't think that 'Oumuamua had any of those volatiles, those gases on it, but apparently it did. As it went away from the Sun, it changed its trajectory just a little bit. It also has attracted some attention because some people have wondered, could this be a technology? Could this be a spaceship or part of a spaceship? Or some people have talked about a lightsail-- something that actually can use stellar winds to accelerate and move between the stars. I'm always very concerned when somebody suggests a natural object like 'Oumuamua might be an alien spaceship because, for one thing, I think it takes away from the incredible real facts we know about this object. And in my view of the universe, aliens are definitely not impossible-- there could be other life outside the earth. There could even be other technologies outside the eart... For the full transcript, check out https://bigthink.com/videos/oumuamua

A new interview with Dr. Abraham "Avi" Loeb from Harvard and update on the subject of Oumuamua. We detailed point for point his findings that Oumuamua is an extremely strange object, regardless of its origins, and that it may be consistent with a light sail of some type. This is part one of a two part interview with Dr. Loeb. Have Aliens Found Us? A Harvard Astronomer on the Mysterious Interstellar Object ‘Oumuamua : https://www.newyorker.com/news/the-new-yorker-interview/have-aliens-found-us-a-harvard-astronomer-on-the-mysterious-interstellar-object-oumuamua "‘Oumuamua’s Geometry Could be More Extreme than Previously Inferred", Siraj and Loeb, 2019. https://www.cfa.harvard.edu/~loeb/SL.pdf 6 Strange Facts about the Interstellar Visitor Oumuamua: https://blogs.scientificamerican.com/observations/6-strange-facts-about-the-interstellar-visitor-oumuamua/ "COULD SOLAR RADIATION PRESSURE EXPLAIN ‘OUMUAMUA’S PECULIAR ACCELERATION?", Bialy and Loeb, 2018 https://arxiv.org/pdf/1810.11490.pdf Is Oumuamua A Light Saul? Featuring Dr. Avi Loeb: https://youtu.be/VlpVIyBCG3s Why The Universe May Be Full Of Alien Civilizations Featuring Dr. Avi Loeb: https://youtu.be/6ckgBxRASTo Website: https://www.eventhorizonshow.com/ You can now support us on Patreon! https://www.patreon.com/EventHorizonShow Follow us on Twitter! https://twitter.com/jmgeventhorizon Follow us on Instagram! https://www.instagram.com/jmgeventhorizon/ MUSIC (Track names on screen in credits) Chris Zabriskie: https://chriszabriskie.bandcamp.com/ Kai Engel: https://kaiengel.bandcamp.com/ Stellardrone: https://stellardrone.bandcamp.com/ Miguel Johnson: https://migueljohnson.bandcamp.com

In this week's questions show, I wonder what we'd do if we actually found life, if we can be ready for the next interstellar asteroid, why the Mars 2020 rover is going to help with sample return and more. Cosmic Horizons episode about galaxies disappearing: https://www.youtube.com/watch?v=DXtWrDjDIGI Our Book is out! https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/ 00:45 What if we did find life? 02:40 Next Oumuamua 04:31 How will Mars 2020 help with sample return? 06:29 Could you have a triple star system? 07:48 Can we observe continents on other planets? 09:22 Why do I live in the land of the Ewoks? 10:11 Why don't we remake Hubble? 12:26 Should we disassemble Mercury? 14:31 Could the Moon get into the Roche limit? 16:41 Can galaxies disappear over the cosmic horizon? 18:35 How can we see the CMB? 21:00 Could two planets touch each other? 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]

John Michael Godier discusses if there could be life on ice shell moons like Europa and Enceladus and the possibility of interstellar objects such as Oumuamua seeding life on other planets with Dr. Karen Meech of the University of Hawaii which discovered the first interstellar object Oumuamua, with the Pan-STARRS 1 telescope. What is Oumuamua? With Dr. Karen Meech: https://youtu.be/8Q7TzLH2cRA Website: https://www.eventhorizonshow.com/ You can now support us on Patreon! https://www.patreon.com/EventHorizonShow Follow us on Twitter! https://twitter.com/jmgeventhorizon Follow us on Instagram! https://www.instagram.com/jmgeventhorizon/

10 Reasons the first discovered interstellar object Oumuamua will blow your mind. 1I/2017 U1, or Oumuamua, which has turned out to be one of the strangest objects yet seen by astronomers. The University of Hawaii discovered the first interstellar object, named 'Oumuamua, with the Pan-STARRS 1 telescope in November of 2017. The Mysterious Interstellar Object Oumuamua: https://youtu.be/UwNqdc788QM What Is 'Oumuamua? With Dr. Karen Meech: https://youtu.be/2HBgsiOGOwI What Does 'Oumuamua Look Like? Featuring Dr. Karen Meech: https://youtu.be/8Q7TzLH2cRA Is 'Oumuamua a Light Sail? Featuring Dr. Avi Loeb: https://youtu.be/VlpVIyBCG3s The story of 'Oumuamua, the first visitor from another star system | Karen J. Meech: https://youtu.be/rfi3w9Bzwik You can now support us on Patreon! https://www.patreon.com/EventHorizonShow Website: https://www.eventhorizonshow.com/ Follow us on Twitter! https://twitter.com/jmgeventhorizon Follow us on Instagram! https://www.instagram.com/jmgeventhorizon/ "DISCOVERY AND CHARACTERIZATION OF THE FIRST KNOWN INTERSTELLAR OBJECT", Meech et al, 2017 https://www.eso.org/public/archives/releases/sciencepapers/eso1737/eso1737a.pdf "Six Strange Facts About`Oumuamua", A. Loeb, 2018 https://arxiv.org/abs/1811.08832 "Could Solar Radiation Pressure Explain 'Oumuamua's Peculiar Acceleration?", Bialy and Loeb, 2018 https://arxiv.org/abs/1810.11490 Cylinder Eight by Chris Zabriskie is licensed under a Creative Commons Attribution 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 license (https://creativecommons.org/licenses/by/4.0/) Source: http://chriszabriskie.com/cylinders/ Artist: http://chriszabriskie.com/ Cylinder Three by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://chriszabriskie.com/cylinders/ Artist: http://chriszabriskie.com/

A full exploration of the first interstellar object ever confirmed, 1I/2017 U1, or Oumuamua, which has turned out to be one of the strangest objects yet seen by astronomers. Event Horizon Interviews: Dr. Karen Meech on Oumuamua https://youtu.be/2HBgsiOGOwI https://youtu.be/8Q7TzLH2cRA Dr. Avi Loeb: https://youtu.be/VlpVIyBCG3s Papers: "Plausible home stars of the interstellar object 'Oumuamua found in Gaia DR2", Bailer-Jones et al, 2018 https://arxiv.org/abs/1809.09009 "Prospects for Backtracing 1I/`Oumuamua and Future Interstellar Objects", Q. Zhang, 2018. https://arxiv.org/abs/1712.08059 " 1I/2017 'Oumuamua-like Interstellar Asteroids as Possible Messengers from the Dead Stars", R. Rafikov, 2018 https://arxiv.org/abs/1801.02658 "DISCOVERY AND CHARACTERIZATION OF THE FIRST KNOWN INTERSTELLAR OBJECT", Meech et al, 2017 https://www.eso.org/public/archives/releases/sciencepapers/eso1737/eso1737a.pdf "Non-Gravitational Acceleration in the Trajectory of 1I/2017 U1 (ʻOumuamua)", Micheli et al, 2018 https://www.eso.org/public/archives/releases/sciencepapers/eso1820/eso1820a.pdf "Spin Evolution and Cometary Interpretation of the Interstellar Minor Object 1I/2017 'Oumuamua", R. Rafikov, 2018 https://arxiv.org/abs/1809.06389 "Spitzer Observations of Interstellar Object 1I/`Oumuamua", Trilling et al, 2018 https://arxiv.org/abs/1811.08072 "Six Strange Facts About`Oumuamua", A. Loeb, 2018 https://arxiv.org/abs/1811.08832 "Could Solar Radiation Pressure Explain 'Oumuamua's Peculiar Acceleration?", Bialy and Loeb, 2018 https://arxiv.org/abs/1810.11490 Cylinder Eight by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://chriszabriskie.com/cylinders/ Artist: http://chriszabriskie.com/ Cylinder Seven by Chris Zabriskie is licensed under a Creative Commons Attribution 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 license (https://creativecommons.org/licenses/by/4.0/) Source: http://chriszabriskie.com/cylinders/ Artist: http://chriszabriskie.com/

Harvard scientists think that the first interstellar object detected in our solar system, called “Oumuamua,” could be an alien spacecraft. The scientists sought to explain a quirk in Oumuamua's behavior, which led them to an unusual conclusion. No one knows what Oumuamua is or where it came from, and it's too late to find out for sure. ------------------------------------------------------ #Aliens #Space #ScienceInsider Tech Insider tells you all you need to know about tech: gadgets, how-to's, gaming, science, digital culture, and more. Subscribe to our channel and visit us at: http://www.businessinsider.com/sai TI on Facebook: https://www.facebook.com/techinsider TI on Instagram: https://www.instagram.com/tech_insider/ TI on Twitter: https://twitter.com/techinsider INSIDER on Snapchat: https://insder.co/2KJLtVo ------------------------------------------------------ Why Harvard Scientists Think This Object Is An Alien Spacecraft