DO NOT TIP. This is an unofficial YouTube mirror of CoolWorldsLab (https://youtu.be/PTbwCDquImc). If you want to tip CoolWorldsLab please visit https://www.coolworldslab.com/support. Convince CoolWorldsLab to join Odysee! ----------------------------- Exomoons! Why are us Cool Worlders so fascinated by them? In this week's episode, Alex Teachey of the Cool Worlds Lab explains why some of us are working so hard to try and find these elusive objects. From understanding formation to possible habitats for life, moons promise to reveal many answers and surprises in the years ahead. ::More about this Video:: ► Canup & Ward (2002), "Formation of the Galilean Satellites: Conditions of Accretion", Astronomical Journal: http://iopscience.iop.org/article/10.1086/344684/ ► Canup & Ward (2006), "A common mass scaling for satellite systems of gaseous planets", Nature: http://www.nature.com/nature/journal/v441/n7095/full/nature04860.html?foxtrotcallback=true ► Agnor & Hamilton (2006), "Neptune's capture of its moon Triton in a binary-planet gravitational encounter", Nature: https://www.nature.com/nature/journal/v441/n7090/full/nature04792.html ► Kipping (2014), "In Search of Exomoons", Bash Symposium 2013: https://arxiv.org/abs/1405.1455 ► Kipping et al. (2012), "The Hunt for Exomoons with Kepler (HEK): I. Description of a New Observational Project", The Astrophysical Journal: https://arxiv.org/abs/1201.0752 ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Background 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!!

DO NOT TIP. This is an unofficial YouTube mirror of CoolWorldsLab (https://youtu.be/xEt941k2GAg). If you want to tip CoolWorldsLab please visit https://www.coolworldslab.com/support. Convince CoolWorldsLab to join Odysee! ----------------------------- Over recent years, newspapers have been filled with headlines such as "billions of Earths in the Milky Way alone". But how many Earth-like planets are there really? Join us as we explore all of the different estimates for how many Earths there really are, how each team arrived at their answers, and why they seem to differ so wildy from each other, before finally we'll offer our own answer to this monumental question. Written & presented by Prof David Kipping This video is based on research conducted at the Cool Worlds Lab at Columbia University, New York. You can now support our research program directly here: https://www.coolworldslab.com/support References: ► Youdin, A., 2011, ApJ, 742, 38: https://arxiv.org/abs/1105.1782 ► Catanzarite, J. & Shao, M., 2011, ApJ, 738, 151 https://arxiv.org/abs/1103.1443 ► Dong, S. & Zhu, Z., 2013, ApJ, 778, 11: https://arxiv.org/abs/1212.4853 ► Petigura, E., Howard, A., Marcy, G. W., 2013, PNAS, 110, 19273: https://arxiv.org/abs/1311.6806 ► Foreman-Mackey, D., Hogg., D. W. & Morton, T. D., 2014, ApJ, 795, 12: https://arxiv.org/abs/1406.3020 ► Farr, W. M., Mandel, I., Aldridge, C., Stroud, K., 2014, arXiv:1412.4849: https://arxiv.org/abs/1412.4849 ► Burke, C. J., Christiansen, J. L., Mullally F. et al., 2015, ApJ, 809, 19: https://arxiv.org/abs/1506.04175 ► Silburt, A., Gaidos, E., Wu, Y., 2015, ApJ, 799, 180: https://arxiv.org/abs/1406.6048 ► Traub, W., 2016, ApJ submitted: https://arxiv.org/abs/1605.02255 ► Belikov, R., Stark, C., Batalha, N., et al., 2017: https://exoplanets.nasa.gov/system/internal_resources/details/original/680_SAG13_closeout_8.3.17.pdf ► Garrett, D., Savransky, D., Belikov, R., 2018, PASP, 130, 114403: https://arxiv.org/abs/1810.02847 ► Mulders, G. D., Pascucci, I., Apai, D., Ciesla, F. J., 2018, AJ, 156, 24: https://arxiv.org/abs/1805.08211 ► Hsu, D. C., Ford, E. B., Ragozzine, D., Ashby, K., 2019, ApJ, 158, 20: https://arxiv.org/abs/1902.01417 ► Bryson, S., Coughlin, J., Batalha, N. M. et al., 2019, submitted: https://arxiv.org/abs/1906.03575 ► Zink, J. K., Christiansen, J. L., Hansen, B. M. S., 2019, MNRAS, 483, 4479: https://arxiv.org/abs/1901.00196 ► Jenkins, J. M., Twicken, J. D.. Batalha, N. M., et al., 2015, AJ, 150, 56: https://arxiv.org/abs/1507.06723 ► Burke, C. J., Mullally, F., Thompson, S. E., et al., 2019, AJ, 157, 143: https://arxiv.org/abs/1901.00506 Video materials & graphics used: ► Atacama timelapse by Timestorm Films: https://youtu.be/x2D7jHfitzk ► Spinning galaxy animation by Huy Trường Nguyễn: https://youtu.be/VhowJ3OZ2BM ► GJ 357 animations by NASA's Goddard Space Flight Center/Chris Smith: https://svs.gsfc.nasa.gov/13266 ► Wheat field footage by xbility1: https://youtu.be/F5cAM8Nskmk ► Orion nebula animation from Space.com/NASA/ESA: https://www.space.com/39362-orion-nebula-3d-visualization-video.html ► Bacteria videos from Nikon Small World competition: https://www.nikonsmallworld.com/galleries/2015-small-world-in-motion-competition/trachelius-ciliate-feeding-on-a-campanella-ciliate ► TESS & Kepler animations by NASA's Goddard Space Flight Center: https://svs.gsfc.nasa.gov/12884 ► Mars flyby footage by Jan Fröjdman/NASA/JPL/University of Arizona: https://vimeo.com/207076450 ► Trappist-1 animation by ESO/L. Calçada/spaceengine.org: https://www.eso.org/public/videos/eso1706h/ ► Kepler Orrery V by Ethan Kruse: https://youtu.be/Td_YeAdygJE Movies/TV scenes used: ► Agora (2010) Focus Features ► 300 (2006) Warner Bros. Pictures Music used, in chronological order: ► "Selha" by Stephen Keech, licensed through SoundStripe.com: https://app.soundstripe.com/songs/7102 ► "Waking Up" by Atlas, licensed through SoundStripe.com: https://app.soundstripe.com/songs/3984 ► Cylinder Four (http://chriszabriskie.com/cylinders/) by Chris Zabriskie (http://chriszabriskie.com/); licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) ► Cylinder Two (http://chriszabriskie.com/cylinders/) by Chris Zabriskie (http://chriszabriskie.com/); licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) ► Cylinder Five (http://chriszabriskie.com/cylinders/) by Chris Zabriskie (http://chriszabriskie.com/); licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) ► Music from Neptune Flux, "We Were Never Meant to Live Here" by Chris Zabriskie (http://chriszabriskie.com/neptuneflux/); licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) And also: ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Cool Worlds Long Form Videos ► http://bit.ly/CoolWorldsEssays SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe THANKS FOR WATCHING!! #HabitablePlanets #EarthTwins #CoolWorlds

DO NOT TIP. This is an unofficial YouTube mirror of CoolWorldsLab (https://youtu.be/risNfZxz6DQ). If you want to tip CoolWorldsLab please visit https://www.coolworldslab.com/support. Convince CoolWorldsLab to join Odysee! ----------------------------- You've probably heard about the recent news of the strange dimmings of Tabby's Star and the provoactive hypothesis of an alien megastructure (fi not check out http://bit.ly/TabbysStar). But could there be a natural explanation instead? Well two theoretical astrophycistss here at Columbia think so and here they briefly summarize some of the leading theories (although news ones are appearing almost every day!) and they think their own explanation is the best one so far. ::More about this Video:: ► Metzger, Shen & Stone (2017), "Secular Dimming of KIC 8462852 Following its Consumption of a Planet": https://arxiv.org/abs/1612.07332 ► Montet & Simon (2016), "KIC 8462852 Faded Throughout the Kepler Mission": https://arxiv.org/abs/1608.01316 ► Schaefer (2016), "KIC 8462852 Faded at an Average Rate of 0.165+-0.013 Magnitudes Per Century From 1890 To 1989": https://arxiv.org/abs/1601.03256 ► 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 Daft Punk "Harder, Better, Stronger, Faster": http://www.daftpunk.com and http://smarturl.it/DaftPunkiTunes ::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!!

DO NOT TIP. This is an unofficial YouTube mirror of CoolWorldsLab (https://youtu.be/jjh0oK7ZyfM). If you want to tip CoolWorldsLab please visit https://www.coolworldslab.com/support. Convince CoolWorldsLab to join Odysee! ----------------------------- Prof Jason Wright from Penn State explains why Tabby's Star has become known as the most mysterious star in the galaxy and how you can help him and Tabby Boyajian solve this mystery. To contribute to their Kickstarter campaign, go to https://www.kickstarter.com/projects/608159144/the-most-mysterious-star-in-the-galaxy right now! ::More about this Video:: ► Kickstarter page: https://www.kickstarter.com/projects/608159144/the-most-mysterious-star-in-the-galaxy ► Boyajian et al. (2016), "Planet Hunters X. KIC 8462852 - Where's the Flux?": http://arxiv.org/abs/1509.03622 ► Wright et al. (2016), "The Ĝ Search for Extraterrestrial Civilizations with Large Energy Supplies. IV. The Signatures and Information Content of Transiting Megastructures": http://arxiv.org/abs/1510.04606 ► Prof Wright's blog, AstroWright: http://sites.psu.edu/astrowright/ ► Dr Tabetha Boyajian's TED talk: https://www.ted.com/talks/tabetha_boyajian_the_most_mysterious_star_in_the_universe ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::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 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!!