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| Name | How Many "Earth-Like" Planets Are There Really? |
| Video Uploader | Video From Cool Worlds |
| Upload Date | This Video Uploaded At 27-09-2019 12:00:09 |
| Video Discription | 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 |
| Category | Science & Technology |
| Tags | How Many Earths? | Number of Habitable Planets | Habitable Planets | frequency of habitable planets | frequency of earths | how many earths in galaxy | other earths | another earth | earth twins | earth 2.0 | Gamma Earth | Eta Earth | Professor Kipping | David Kipping | Columbia University | Cool Worlds Lab | earth-like planet |
