Visit https://brilliant.org/ScienceAsylum/ to get started for free and get 20% off your annual subscription. At about 9.6 billion light years, our intuition about angular diameter breaks down. Galaxies start getting larger the more distant they are. Let's find out why. Nick Lucid - Host/Writer/Editor/Animator Natalie Wells - Researcher ________________________________ VIDEO ANNOTATIONS/CARDS The Speed of Light is Infinite... Kind Of: https://www.youtube.com/watch?v=vPi1lyAx4ws Most Galaxies are Moving Faster than Light! https://www.youtube.com/watch?v=9udKv1NXm7w ________________________________ SUPPORT THE SCIENCE ASYLUM Patreon: http://www.patreon.com/ScienceAsylum YouTube Membership: null Advanced Theoretical Physics (Paperback): http://www.lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html Advanced Theoretical Physics (eBook): https://gumroad.com/l/ubSc Merchandise: http://shop.spreadshirt.com/scienceasylum/ ________________________________ HUGE THANK YOU TO THESE SUPPORTERS Asylum Counselors: James Younger DDS Asylum Orderlies: Dhruv Singhal, Medec Hurtz Einsteinium Crazies: Benjamin Sharef, Blank NA, Bosphorus, Eoin O'Sullivan, Ilya Yashin, Jonathan Lima, Joseph Salomone, Kevin Flanagan, OnlineBookClub, Sean K Plutonium Crazies: Al Davis, Compuart, Ellis Hall, Fabio Manzini, Kevin MacLean, Rick Myers, Vid Icarus Platinum Crazies: Bart Barry, Clayton Bruckert, David Johnston, Jon Adams, Jonas Wepeel, Jonathan Reel, Joshua Gallagher, Marino Hernandez, Mikayla Eckel Cifrese, Mr. Orn Jonasar, Olga Cooperman, William Hutchison ________________________________ OTHER SOURCES https://people.ast.cam.ac.uk/~pettini/Intro%20Cosmology/ https://doi.org/10.1139/cjp-2019-0257 https://arxiv.org/abs/astro-ph/9905116 https://www.astro.umd.edu/~miller/teaching/astr422/lecture09.pdf https://doi.org/10.1142/S0218271800000542 https://www.physics.unlv.edu/~jeffery/astro/cosmol/cosmos_distance_z_10000.html ________________________________ LINKS TO COMMENTS https://www.youtube.com/watch?v=ANDqwtAd1aY https://www.youtube.com/watch?v=ANDqwtAd1aY https://www.youtube.com/watch?v=ANDqwtAd1aY ________________________________ IMAGE CREDITS JWST Deep Field: https://webbtelescope.org/contents/media/images/2022/035/01G7DDDR3P8ZW10HD8MKXGV8MJ ________________________________ TIME CODES 00:00 Cold Open 00:28 What is Angular Diameter? 01:56 Angular Diameter Turnaround 02:52 Finite Speed of Light 04:07 Time is a Major Factor 06:02 Space is Expanding 07:48 Cosmic Light Cone 08:21 Summary 09:09 Sponsor Message 10:07 Outro 10:26 Featured Comment