The Mind-Blowing Scale of Voids and Supervoids

Supervoids are the massive, empty spaces between galaxy clusters and galaxy filaments. But just because they are empty, doesn't mean they can't be fascinating! They have taught us a great deal about galaxy structures and the early universe, and today we'll be venturing into a few of the biggest! You can now support me on Patreon: https://www.patreon.com/sea_media Patrons get ad-free access to my videos, and also get early access sneak peaks! Alternatively, you can become a channel member through YouTube: https://youtube.com/seaMedia/join All support is hugely appreciated and helps me in my full-time job of creating these videos! Do you use these videos to sleep or for night time watching? Check out the new sleeping space playlist, a collection of my most chilled out and ambient videos. https://youtube.com/playlist?list=PLkoaIad9k4NIlsG6g-almaZH6MzR_T5eV Captions by Kino Sen: https://www.youtube.com/channel/UCM-pNqfHVKFshOI2oI6-MTA Music, Footage Credits & Sources of Information: MUSIC: - Long Walks [Emily A Sprague] - YouTube Audio Library - Fairy Meeting [Emily A Sprague] - YouTube Audio Library - A Slow Dream [Emily A Sprague] - YouTube Audio Library - Devoid [ELPHNT] - YouTube Audio Library - Rain Cloud Music [Emily A Sprague] - YouTube Audio Library FOOTAGE: Many scenes in this video were captured using SpaceEngine Pro, a virtual universe simulator! Get SpaceEngine on Steam and try it for yourself: https://store.steampowered.com/app/314650/SpaceEngine/ http://spaceengine.org/ Much of the stock footage in this video was provided by Videezy.com. Check them out: https://www.videezy.com/ - Expanding Universe Animation [Hubble ESA]: https://www.youtube.com/watch?v=T9lkcgu5iwM - Dark Energy Expansion: https://www.youtube.com/watch?v=7PGVJgP-YWI - NASA Illustris Collaboration Simulation: https://www.youtube.com/watch?v=QSivvdIyeG4&t - Expanding Galaxies: - Hubble Images: https://www.youtube.com/watch?v=Un5SEJ8MyPc - Pink Galaxy Footage: https://www.youtube.com/watch?v=eoEVCau7hio - Provided by RoyaltyFreeTube under a Creative Commons License - Bubble Footage: https://www.youtube.com/watch?v=3FaVQcEjHUc SOURCES OF INFORMATION: - Redshift Surveys Confirming Voids: https://arxiv.org/pdf/astro-ph/0106498.pdf - Bootes Void Articles: https://web.archive.org/web/20071119011039/http://findarticles.com/p/articles/mi_m1511/is_n8_v16/ai_17253874 https://web.archive.org/web/20110807132705/http://www.acceleratingfuture.com/michael/blog/2006/04/the-bootes-void/ - How Large is the Local Group: https://www.universetoday.com/30286/local-group/ - Dark Matter's Adbsence in Voids: https://www.universetoday.com/16927/dark-matter-is-missing-from-cosmic-voids/ - Atomic Density of Intergalactic Space: https://www.physicsoftheuniverse.com/how-many-molecules-atoms-are-there-in-each-cubic-metre.html - Identification of the KBC Void: https://arxiv.org/abs/1304.2884 https://www.forbes.com/sites/startswithabang/2017/06/07/were-way-below-average-astronomers-say-milky-way-resides-in-a-great-cosmic-void/#34ee822f6d05 - The CMB Cold Spot Supervoid Study [2015]: https://academic.oup.com/mnras/article/450/1/288/994945 TIMESTAMPS: 0:00 Emptiness in Space 2:04 Defining a Void 3:52 Mapping Voids Around Us 4:38 How Voids Form 7:05 The Bootes Void 9:16 Voids and Dark Energy 10:33 The Cold Spot 12:10 The KBC Void