Cool Worlds

Tabby's Star (aka Boyajian's Star) is back in the news with some new data published by the original discoverers. Finally we are starting to get a sense as to what might be going on around this star, with dust emerging as a leading hypothesis. Is the alien megastucture hypothesis excluded now? Where did the dust come from? How can we confirm this idea? We get into all of this in our first video of 2018 - Happy New Year! ::More about this Video:: ► Tabby's Star CoolWorlds Playlist: http://bit.ly/TabbysStar ► Boyajian et al. (2018), "The First Post-Kepler Brightness Dips of KIC 8462852": https://arxiv.org/abs/1801.00732 ► Metzger, Shen & Stone (2017), "Secular Dimming of KIC 8462852 Following its Consumption of a Planet": https://arxiv.org/abs/1612.07332 ► Boyajian et al. (2016), "Planet Hunters X. KIC 8462852 - Where's the Flux?": https://arxiv.org/abs/1509.03622 ► Live Q&A on Cool Worlds with Tabby Boyajian: https://youtu.be/k_-6SEb2QlM ► Cool Worlds video "What is an Alien Megastructure?" at https://youtu.be/tYHVCW3BkHU ► Jason Wright's Cool Worlds video, "The Most Mysterious Star": https://youtu.be/jjh0oK7ZyfM ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Outro music by Thomas Bergersen "Final Frontier": http://www.thomasbergersen.com ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

We've been looking forward to sharing this one with you... Last year, we started thinking about what it would take to detect mountains, valleys and volcanoes - surface topography - on an exoplanet. It seemed like a crazy idea at the time but we decided to make the calculation for fun and were surprised that it may actually be feasible in the not too distant future. Moiya McTier of the Cool Worlds Lab explains how we started thinking about this and our novel method for attempting to detect such features. As always, we look forward to answering your questions you may have about our research - Have a great day! ::More about this Video:: ► McTier & Kipping, 2018, "Finding Mountains with Molehills: The Detectability of Exotopography": ► Intro landscape videos from Teton Gravity Research (https://vimeo.com/121045965), Sam Cossman (https://vimeo.com/105192180), Karim Iliya (https://vimeo.com/174796140) and David (https://vimeo.com/175777474). ► Orbital video footage from NASA/ISS ► Mars footage from NASA/JPL/University of Arizona ► Thumbnail image credit: Michael S. Helfenbein ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Intro song is "Reverence" by Triad, licensed through SoundStripe.com: https://app.soundstripe.com/songs/754 ► Background song is "Waking Up" by Atlas, licensed through SoundStripe.com: https://app.soundstripe.com/songs/3984 ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagra

Super Blue Blood Moon. What a mouthful. This week's Cool Worlds video caves into peer pressure and explains why the super moon isn't super, the blue moon isn't blue and the blood moon has nothing to do with blood. Back to research soon! ::More about this Video:: ► Clips of Neil deGrasse Tyson with Chuck Nice taken from the StarTalk Radio show (https://www.startalkradio.net/) - check out this awesome show! ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music by 8-bit Universe "Harder Better Faster Stronger [8 Bit Cover Tribute to Daft Punk]": https://8bituniverse.bandcamp.com/track/harder-better-faster-stronger-8-bit-tribute-to-daft-punk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

SpaceX successfully launched the Falcon Heavy and put a Tesla Roadster in space... no really. Some quick thoughts, reactions and a breakdown of what happened after this amazing launch - Mars here we come! ::More about this Video:: ► Space-X website: http://www.spacex.com ► Thanks so much to the Twitterverse during the launch, especially to @SpaceX, @elonmusk, @shannonmstirone, @nytimes, @jaynebirkby, @Astro0Glen, @elakdawalla, @therogue_astro, @te_pickering, @kevinmgill, @astroengine, @NatalieKenyonW, @YovannyHC, @planet4589, @LeeBillings, @DrMRFrancis, @rocketentrpreneur, @themadstone, @RyanFMandelbaum, @SpcPlcyOnline, @lorengrush, @BadAstronomer, @aussiastronomer, @nespinozap & @jeff_foust ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music by Flight of the Conchords "Bowie": https://itunes.apple.com/us/album/flight-of-the-conchords/278064216 ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

No really - there's an artificial probe detected by astronomers to be moving at speed through the Solar System this week! It's Cherry Red, looks like a car, and used to belong to Elon Musk. Ok sorry for the bait! These observations actually give us a sense as to what an artificial interstellar interloper might look like. But this week hasn't been all cherries as the President takes aim at WFIRST, a next-gen space telescope which was the top recommendation of the US astronomy community in the last decadal survey. ::More about this Video:: ► Space-X website: http://www.spacex.com ► Popular Mechanics article on the rotation rate of the Roadster: https://www.popularmechanics.com/space/satellites/a17762760/heres-exactly-how-fast-elon-musks-tesla-is-spinning-in-space/ ► University of Hawaii news story on their images: http://www.hawaii.edu/news/2018/02/09/atlas-telescope-spots-tesla-roadster/ ► MMT video by Tim Pickering: https://www.nytimes.com/2018/02/19/science/nasa-dark-energy-wfirst.html ► WFIRST NASA website: https://wfirst.gsfc.nasa.gov ► Astro2010 Decadal Survey: http://sites.nationalacademies.org/bpa/bpa_049810 ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Background music by Evolv ("Higher Learning") and Adrian Walther ("Illuminate") licensed through Soundstripe.com ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Dr Keith Hawkins, a bad-ass astrophysicist here at Columbia University, works on understanding the lives and properties of stars across the galaxy. Stars are incredible objects which bring light into our universe and are of course crucial for life as we know it. But can we summarize how they live out their lives in just ~5 mins? Sure, let's do it! ::More about this Video:: ► The Wikipedia page on Stellar Evolution (https://en.wikipedia.org/wiki/Stellar_evolution) is a pretty good free resource to learn about the different topics and phases of a star's life. ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Background music by Matt Wigton "Changed", licensed by SoundStripe.com ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!! ::More about this Video:: ► The Wikipedia page on Stellar Evolution (https://en.wikipedia.org/wiki/Stellar_evolution) is a pretty good free resource to learn about the different topics and phases of a star's life. ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music by Flight of the Conchords "Bowie": https://itunes.apple.com/us/album/flight-of-the-conchords/278064216 ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos

With the selection of Ariel by ESA, exoplanetary scientists are now looking forward to a data-rich decade with numerous space telescopes coming our way soon. In this video we break down the different missions coming up and some of the differences between them. ::More about this Video:: ► TESS website: https://tess.gsfc.nasa.gov ► CHEOPS website: http://cheops.unibe.ch ► JWST website: https://www.jwst.nasa.gov ► WFIRST website: https://wfirst.gsfc.nasa.gov ► PLATO website: http://sci.esa.int/plato/ ► ARIEL website: https://ariel-spacemission.eu ► Mars detection telegrams: http://www.astronomerstelegram.org/?read=11448 and http://www.astronomerstelegram.org/?read=11449 ► Yi, Chen & Kipping (2018): "Forecasting the detectability of known radial velocity planets with the upcoming CHEOPS mission": https://arxiv.org/abs/1801.05595 ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music by 8-bit Universe "Harder Better Faster Stronger [8 Bit Cover Tribute to Daft Punk]": https://8bituniverse.bandcamp.com/track/harder-better-faster-stronger-8-bit-tribute-to-daft-punk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Graduate student Tiffany Jansen recently submitted a new paper making the first-ever measurement of the reflectivity, or "albedo", of small exoplanets discovered by Kepler. In this video, Tiffany explains how we pulled off this trick by stacking different but similar planets together to boost signal-to-noise and showing for the first time that even sub-Neptune sized planets tend to be dark. Make sure to say congratulations to Tiffany and Moiya below who recently were awarded a prestiguous NSF fellowship for their excellent research! ::More about this Video:: ► Jansen & Kipping (2018), "Kepler's Dark Worlds: a Low Albedo for an Ensemble of Neptunian and Terran Exoplanets": https://arxiv.org/abs/1710.10213 ► "Reflections from an Alien World" Cool Worlds video: https://youtu.be/_A9CfEEXMqQ ► "The Darkest World" Cool Worlds video: https://youtu.be/ZdqooU-C3ts ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music by 8-bit Universe "Harder Better Faster Stronger [8 Bit Cover Tribute to Daft Punk]": https://8bituniverse.bandcamp.com/track/harder-better-faster-stronger-8-bit-tribute-to-daft-punk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Can a droid (a machine) predict whether Tatooine (a circumbinary planet) is dynamically stable or not? Turns out yes! New research from the Cool Worlds team was recently published where undergrad Chris Lam wrote his first lead-author paper on exactly this. Unfortunately Chris couldn't make it to New York from his new job down in DC so Prof Kipping is taking the reigns today and explains why three-body systems are so tricky and how a neural network can save the day. ::More about this Video:: ► Press release up at: https://www.ras.org.uk/news-and-press/news-archive/3120-droids-beat-astronomers-in-predicting-survivability-of-exoplanets ► Lam & Kipping (2018), "A machine learns to predict the stability of circumbinary planets", MNRAS, In Press: https://arxiv.org/abs/1801.03955 ► Holman & Wiegert (1999), "Long-Term Stability of Planets in Binary Systems", AJ, 117, 621: https://arxiv.org/abs/astro-ph/9809315 ► Raghavan et al. (2010), "A Survey of Stellar Families: Multiplicity of Solar-Type Stars", ApJS, 190, 1: https://arxiv.org/abs/1007.0414 ► Armstrong et al. (2014), "On the Abundance of Circumbinary Planets", MNRAS, 444, 1873: https://arxiv.org/abs/1404.5617 ► Orbits videos from Rubens Machado (https://youtu.be/_3uQqrrBcrQ) and orbsi (https://www.youtube.com/watch?v=d0SB9oon4pc) ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music is "Star Wars Throne Room Theme (8 Bit Remix Cover Version)" by 8 Bit Universe : https://www.youtube.com/watch?v=xp7NFak7eII ► Thumbnail image is "Tatooine Sunset" by Remi Chu: https://www.pinterest.com/pin/853854410572388373/ ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bi

TESS launch is imminent! Scheduled for 1832 EDT on Monday (16th April 2018), NASA's next exoplanet hunter is getting everyone here at the Cool Worlds Lab crossing our fingers and toes for the launch. In this video, we give a breakdown of what TESS is all about and how it's different from what's come before. ::More about this Video:: ► NASA TESS homepage: https://tess.gsfc.nasa.gov ► Live stream link: https://www.nasa.gov/press-release/nasa-television-to-air-launch-of-next-planet-hunting-mission ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music by 8-bit Universe "Harder Better Faster Stronger [8 Bit Cover Tribute to Daft Punk]": https://8bituniverse.bandcamp.com/track/harder-better-faster-stronger-8-bit-tribute-to-daft-punk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

At best, we typically only know the mass and radius of exoplanets. But really, when we find rocky planets we'd like to know whether their interiors are similar or dissimilar to that of the Earth. Conventionally, this is impossible, as there are simply too many possible models and just two measured quantities. In a new research paper from our group, the Cool Worlds Lab here at Columbia University, we think we've helped crack at least part of the problem. Our new model, called HARDCORE, is explained in this video by the lead author and rising senior undergraduate at Columbia, Gabrielle Suissa - enjoy! ::More about this Video:: ► Suissa & Kipping (2018), "A HARDCORE model for constraining an exoplanet's core size", MNRAS, 476, 2613: https://arxiv.org/abs/1804.02019 ► HARDCORE code is available at GitHub: https://github.com/gsuissa/hardCORE ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music by 8-bit Universe "Harder Better Faster Stronger [8 Bit Cover Tribute to Daft Punk]": https://8bituniverse.bandcamp.com/track/harder-better-faster-stronger-8-bit-tribute-to-daft-punk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

The Search for Extraterrestrial Intelligence (SETI) has been growing in confidence and repute lately thanks to astronomer's detections of habitable worlds and the private funding been poured into the enterprise. With renewed efforts afoot, it's worth pausing for a moment and asking - well what do we do if we succeed? How should the scientists communicate their results? How will the public react? Social media in particular disrupts the conventional pattern of scientific announcements and poses some interesting challenges for SETI. In this video we perhaps end up asking more questions than answers, but let's get into a discussion in the comments about how best to proceed! ::More about this Video:: ► International Academy of Astronautics Post Detect Protocol (1989): https://iaaseti.org/en/declaration-principles-concerning-activities-following-detection/ ► International Academy of Astronautics Post Detect Protocol (2010): http://resources.iaaseti.org/protocols_rev2010.pdf ► The Rio Scale paper, Almar & Tartar (2011): https://www.sciencedirect.com/science/article/pii/S0094576509003683 ► Rio Scale calculator: http://avsport.org/IAA/riocalc.htm ► Centauri Dreams blog article about the RATAN-600 signal: https://www.centauri-dreams.org/2016/08/27/an-interesting-seti-candidate-in-hercules/ ► Astronomy.com debunk the RATAN-600 signal: http://www.astronomy.com/news/2016/08/the-promising-seti-signal-probably-isnt-aliens ► World Science Festival: "Alien Contact: What Happens Next?": https://www.worldsciencefestival.com/programs/alien-contact-happens-next/ ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Outro music by 8-bit Universe "Harder Better Faster Stronger [8 Bit Cover Tribute to Daft Punk]": https://8bituniverse.bandcamp.com/track/harder-better-faster-stronger-8-bit-tribute-to-daft-punk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCo

TRAPPIST-1 is an amazing system discovered last year featuring seven roughly Earth-sized planets all transiting their diminutive parent star. Could there be an eighth? If there is, in this video Prof Kipping argues that it should be possible to precisely predict what the orbital period of such a planet would be. Right or wrong, this prediction provides a falsifiable hypothesis to test our understanding of the rules governing planetary system architectures. ► Kipping (2018), "Predicting the Orbit of TRAPPIST-1i", AAS research note: https://arxiv.org/abs/1807.10835 ► Gillon et al. (2017), "Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1", Nature: https://arxiv.org/abs/1703.01424 ► Luger et al. (2017), "A seven-planet resonant chain in TRAPPIST-1": https://arxiv.org/abs/1703.04166 ► Sonification of the TRAPPIST-1 system by System-Sounds.com: https://www.youtube.com/watch?v=WS5UxLHbUKc&t=4s ► Cool Worlds video by Chris Lam, "A Machine That Can Predict Exoplanets": https://youtu.be/6xxt9ke8uYo ► Cool Worlds video by Moiya McTier, "TRAPPIST-1: Multiple Chances for Life!": https://youtu.be/16mROb2O2rA ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Science fiction edges closer to science than ever with a new movie being advertised about an exoplanet hunter who finds something extraordinary in his data! Let's face it, we're probably never going to have an excuse as good as this to do a trailer reaction video (!), so today Prof Kipping gives his take on the new trailer explaining what looks scientifically legit versus questionable. let us know what you think of the new trailer below. ► "CLARA" Official Trailer #1: https://youtu.be/7eIbm4cfA8M ► Gaidos (2017), "Transit Detection of a "Starshade" at the Inner Lagrange Point of an Exoplanet": https://arxiv.org/abs/1705.01285 ► Moores & Welch (2018), "Simulating Transits of Large Objects at the L1 Lagrange Point for the 2018 Feature Film Clara": http://adsabs.harvard.edu/abs/2018RNAAS...2b..34M ► James Davenport Vlog: https://www.youtube.com/user/yoursymphonyinc ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

The Kardashev Scale has become a standardized way of classifying (hypothetical) advanced civilizations. The lowest rank, Type 1, is still way ahead of us - but by how much? When will we achieve Type 1 status and exactly how could we plausibly do so? In this video, we go through some estimates of when humanity might become Type 1, and in particular what kind of energy sources we could harness to achieve this feat. You can now support our research program and the Cool Worlds Lab at Columbia University: https://www.coolworldslab.com/support ► Kardashev (1964), "Transmission of Information by Extraterrestrial Civilizations", Soviet Astronomy, 8, 217: http://adsabs.harvard.edu/abs/1964SvA.....8..217K ► Michio Kaku video clip from BigThink: https://youtu.be/7NPC47qMJVg ► Wind map movie credit to Rufinoman and earth.nullschool.net: https://youtu.be/cj2JHsQUoRs ► Wind energy calculation based off Smil (2004), "Inherent limits of renewable energies" ► References for the 3.7TW figure for tidal energy dissipation are: Cartwright 1993 (Theory of ocean tides with application to altimetry, in Satellite Altimetry in Geodesy and Oceanography, edites by R. Rummel and F. Sanso, pp. 99-141, Springer-Verlag, New York), Ray 1994 (Tidal energy dissipation: Observations from astronomy, geodesy, and oceanography, in, The Oceans, edited by S. Majumdaret al., pp. 171-185, Pa. Acad. of Sci., Easton, Pa.), Kagan & Sundermann 1996 (Kagan Dissipation of tidal energy paleotides, and evolution of the Earth-Moon system, Adv. Geophys., 38, pp. 179-266) ► Solar video comes from NASA SDO and GSFC: https://svs.gsfc.nasa.gov/12706 ► Learn more about the Carno cycle here: https://en.wikipedia.org/wiki/Carnot_cycle ► Learn more about the planetary equilibrium calculation here: https://en.wikipedia.org/wiki/Planetary_equilibrium_temperature ► Tidal power map comes from Gunn & Stock-Williams (2012): https://www.sciencedirect.com/science/article/pii/S0960148112001310 ► Outro music by Thomas Be

Alex Teachey is the first author of our new paper presenting compelling evidence for an exomoon orbiting Kepler-1625b. The embargo on our paper in Science Advances has just lifted and we wanted to give our viewers a Cool Worlds exclusive! In one two videos we've shot, Alex goes through our new observations of Kepler-1625b using the Hubble Space Telescope and explains why we think the exomoon hypothesis is the most viable hypothesis to explain this new data, yet why we still think it's best to think of this as a candidate rather than a discovery. ► Companion Video by David Kipping: https://youtu.be/vlcc2MdYaik ► "Did we find an exomoon?" earlier video on Kepler-1625: https://youtu.be/8V9QHn5oHMs ► "An Update on our Exomoon Candidate" earlier video: https://youtu.be/vDXJAtLLiyw == Referenced papers == ► Teachey, A. & Kipping, D., 2018, "Evidence for an Exomoon Orbiting Kepler-1625b", Science Advances ► Teachey, A., Kipping, D. & Schmitt, A., 2018, "HEK. VI. On the Dearth of Galilean Analogs in Kepler, and the Exomoon Candidate Kepler-1625b I", Astronomical Journal, 155, 36: https://arxiv.org/abs/1707.08563 ► Nesvorný, D., Kipping, D., Buchhave, L., Bakos, G. Á., Hartman, J. & Schmitt, A., 2012, "Discovery and Characterization of a Non-Transiting Planet Through Transit Timing Variations", Science, 336, 1133: http://xxx.lanl.gov/abs/1208.0942 ► Wakeford, H. R., Sing, D. K., Evans, T., Deming, D., Mandell, A., 2016, "Marginalizing Instrument Systematics in HST WFC3 Transit Light Curves", ApJ, 819, 10 == Previous papers by the Hunt for Exomoons with Kepler project == ► Kipping, D., Schmitt, A., Huang, X., Torres, G., Nesvorný, D., Buchhave, L., Hartman, J. & Bakos, G., 2015, "The Hunt for Exomoons with Kepler (HEK): V. A Survey of 41 Planetary Candidates for Exomoons", ApJ, 813, 14: http://arxiv.org/abs/1503.05555 ► Kipping, D., Huang, X., Nesvorny, D., Torres, G., Buchhave, L., Bakos, G. & Schmitt, A., 2014, "The Possible Moon of Kepler-90g is a False Po

Prof Kipping is the principal investigator of a project which has been searching for exomoons over recent years and in our latest research paper we've find exciting evidence that the exoplanet Kepler-1625b appears to host a Neptune-sized moon. The embargo on our paper in Science Advances has just lifted and we wanted to give our viewers a Cool Worlds exclusive! In one two videos we've shot, David explains some of the history of our project, how we came to observe this planet and the properties and potential reality of our exomoon candidate. ► Companion Video by Alex Teachey: https://youtu.be/eGjgD27Dtpc ► "Did we find an exomoon?" earlier video on Kepler-1625: https://youtu.be/8V9QHn5oHMs ► "An Update on our Exomoon Candidate" earlier video: https://youtu.be/vDXJAtLLiyw == Referenced papers == ► Teachey, A. & Kipping, D., 2018, "Evidence for an Exomoon Orbiting Kepler-1625b", Science Advances ► Teachey, A., Kipping, D. & Schmitt, A., 2018, "HEK. VI. On the Dearth of Galilean Analogs in Kepler, and the Exomoon Candidate Kepler-1625b I", Astronomical Journal, 155, 36: https://arxiv.org/abs/1707.08563 ► Nesvorný, D., Kipping, D., Buchhave, L., Bakos, G. Á., Hartman, J. & Schmitt, A., 2012, "Discovery and Characterization of a Non-Transiting Planet Through Transit Timing Variations", Science, 336, 1133: http://xxx.lanl.gov/abs/1208.0942 ► Wakeford, H. R., Sing, D. K., Evans, T., Deming, D., Mandell, A., 2016, "Marginalizing Instrument Systematics in HST WFC3 Transit Light Curves", ApJ, 819, 10 ► Cilibrasi, M. et al., 2018, "Satellites Form Fast & Late: a Population Synthesis for the Galilean Moons", MNRAS, 480, 4355: https://arxiv.org/abs/1801.06094 == Previous HEK papers == ► Kipping, D., Schmitt, A., Huang, X., Torres, G., Nesvorný, D., Buchhave, L., Hartman, J. & Bakos, G., 2015, "The Hunt for Exomoons with Kepler (HEK): V. A Survey of 41 Planetary Candidates for Exomoons", ApJ, 813, 14: http://arxiv.org/abs/1503.05555 ► Kipping, D., Huang, X., Nesv

Join for for a live question and answer session about Kepler-1625b-i and all things exomoon! With David Kipping, Alex Teachey and special guest Judit Szulágyi

We know of thousands of planets but precisely zero around white dwarfs. White dwarfs are not weird unusual objects but the inevitable fate of over 90% of the stars in our Universe - including the Sun! They're so small and faint that no telescope, even Kepler, has been able to find planets yet. But a new telescope - called LSST - might change all that. Jorge Cortés, a graduate student here at Columbia in the Cool Worlds Lab, tells us today about his new paper where he calculates how feasible it would be for LSST to pull off this last great planet detection trick which has evaded us to date! ► Jorge Cortés & David Kipping (2018), "On the detectability of transiting planets orbiting white dwarfs using LSST", MNRAS, submitted: https://arxiv.org/abs/1810.00776 ► Sarah Ballard Cool Worlds video on polluted white dwarfs: https://youtu.be/MAeqIQd6BMM ► Keith Hawkins Cool Worlds video on stellar evolution: https://youtu.be/rPmekP6B9Rw ► Background music by 1) Atlas "Waking Up" 2) Ryan Stubbs "Through Reborn Eyes - Unfiltered". Licensed through SoundStripe.com. ► Outro music by Thomas Bergersen "Final Frontier": http://www.thomasbergersen.com ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Transits. We all love them. Right now, we know of over four thousand exoplanets which transit their star and these transits teach us a lot about distant worlds. NASA's TESS mission is just getting started, looking to find even more transits! But TESS has a problem when it comes to long-period planets, because it only looks at most fields for a month - meaning sometimes it will see just a single transit of a planet. This makes it very tricky to determine the period and all sorts of biases affect our inference, as we explore in today's video! ► Kipping (2018), "The Orbital Period Prior for Single Transits", RNAAS, submitted: https://github.com/davidkipping/singletransits/blob/master/rnaas.pdf ► Our previous episode about TESS: https://youtu.be/-2SECBi-AP8 ► NASA TESS Mission Website: https://heasarc.gsfc.nasa.gov/docs/tess/ ► Villanova et al. (2018), "An Estimate of the Yield of Single-Transit Planetary Events from the Transiting Exoplanet Survey Satellite": https://arxiv.org/abs/1805.00956 ► TESS Mission Website: https://heasarc.gsfc.nasa.gov/docs/tess/ ► Outro music by Thomas Bergersen "Final Frontier": http://www.thomasbergersen.com ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Boyajian's Star (Tabby's Star) has mystified us since we first saw those bizarre dimmings recored by NASA's Kepler Mission. Over the years, people have shown that the data could be explained by comets, or planet engulfement, or even alien megastructures. But here at the Cool Worlds Lab, we had a different idea. Rather than propose a specific hypothesis and see how well it matches the data, why not use the data to reconstruct an image of whatever it was that caused the dimming? Sounds simple, right? Well it took us about two years to crack this damn problem but we're thrilled to finally discuss it with you all in this Cool Worlds exclusive! ► Sandford & Kipping (2019), "Shadow Imaging of Transiting Objects", Astronomical Journal, accepted ► Background to Tabby's Star by Jason Wright: https://youtu.be/jjh0oK7ZyfM ► Our live Q&A with Tabby Boyajian: https://youtu.be/k_-6SEb2QlM ► "Just a Dust Bowl?" update video on Tabby's Star: https://youtu.be/D4LIRvGMAVw ► "A Theory for Tabby's Star (Without Aliens)" video: https://youtu.be/risNfZxz6DQ ► Boyajian et al. (2016), "Planet Hunters X. KIC 8462852 - Where's the Flux?": http://arxiv.org/abs/1509.03622 ► Bodman et al. (2018) "The Variable Wavelength Dependence of the Dipping event of KIC 8462852": https://arxiv.org/abs/1806.08842 ► Outro music "Sad Game Boy" by Mikey Geiger, licensed through SoundStripe.com ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://t

► Hear the other point of view at the arXiv.blog here: https://blogs.cornell.edu/arxiv/2018/12/11/a-brief-note-on-short-works/ ► RNAAS homepage: http://iopscience.iop.org/journal/2515-5172 ► PhysicsToday article about RNAAS: https://physicstoday.scitation.org/do/10.1063/PT.6.1.20171109a/full/ ► arXiv's moderation policy: https://arxiv.org/help/moderation ► arXiv's goals: https://arxiv.org/help/general ► Our earlier video about the Bayesian prior for single transiters: https://youtu.be/yHMSHcFV6oo ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

As part of Emily's double-bill videos on "Shadow Imaging", Emily today gets into the details about the weird degeneracies that plague this technique with simple explainers for why they happen. This technique looks set to become an important tool in the future so make sure you get the exclusive low-down from the author herself in this week's Cool Worlds video! ► Get Part I of this video: https://youtu.be/3Q6uOT17A8s ► Sandford & Kipping (2019), "Shadow Imaging of Transiting Objects", Astronomical Journal: https://arxiv.org/abs/1812.01618 ► Thumbnail image from J S Hanon: https://jshanon.wordpress.com/2012/08/27/shadow-puppets/ ► Outro music "Sad Game Boy" by Mikey Geiger, licensed through SoundStripe.com ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping THANKS FOR WATCHING!!