The Dark Energy Mystery [4K]

In 1998, two teams of scientists measured the universe's rate of expansion, expecting to find the gravity of the Cosmic Web bringing the universe into a collapse. But instead, they found that the universe's expansion appears to be accelerating- having expanded more in the latter half of its life. Both teams agreed upon the existence of a new type of energy field, known as Dark Energy, to drive this acceleration, and in doing so, they revived one of Einstein's long-rebuked ideas- the Cosmological Constant. Thank you to SpaceWave - Cosmic Relaxation for yet another amazing soundtrack! If you liked this video's music, check it out below: Dark Energy Soundtrack: https://www.youtube.com/channel/UCj3460Ylt4JEcEiW6PxCH9Q SpaceWave's Channel: https://youtu.be/XntDsSR38qU Thumbnail made by Wimptastic: https://www.youtube.com/channel/UC693qPg44viDNpKX9XXzOkw You can now support this channel on Patreon: https://www.patreon.com/sea_media Patrons get ad-free access to videos, and also early access sneak peaks, while also supporting the channel in the process! Alternatively, you can become a channel member through YouTube: https://youtube.com/seaMedia/join LINKS: - Join my Discord Server: https://discord.gg/sea - Listen to this Video: https://soundcloud.com/sea_media - Get SEA Merchandise: https://the-sea-store.creator-spring.com - For Business Enquiries: [email protected] 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 FOOTAGE: The space scenes in this video were captured using SpaceEngine Pro, a virtual universe simulator: http://spaceengine.org/ Get SpaceEngine on Steam: https://store.steampowered.com/app/314650/SpaceEngine/ Real-life images of space and some scientific visualisations are public domain content provided by NASA and the ESA. - NASA: https://www.nasa.gov - ESA: https://www.esa.int Multiple graphic sequences were provided by Vecteezy.com Pro License Account: https://www.vecteezy.com/members/sea-media-stock SOURCES OF INFORMATION: Defining Dark Energy & some Theories on its Nature: https://astronomy.swin.edu.au/cosmos/d/Dark+Energy What Do We Really Know about Dark Energy? https://arxiv.org/pdf/1103.5331.pdf 1998 Paper by High Z Supernova Search Team Invoking the Cosmological Constant: https://arxiv.org/abs/astro-ph/9805201 Have Dark Forces Been Messing with the Cosmos? https://www.nytimes.com/2019/02/25/science/cosmos-hubble-dark-energy.html Concordance Cosmology & Lambda-CDM: https://phys.libretexts.org/Bookshelves/Astronomy__Cosmology/Big_Ideas_in_Cosmology_(Coble_et_al.)/17%3A_Dark_Energy_and_the_Fate_of_the_Universe/17.04%3A_Cosmic_Concordance_and_Cosmological_Parameters BAOs and Standard Rulers: https://arxiv.org/abs/0801.0642 Misconceptions About the Big Bang: https://web.archive.org/web/20110719235653/http://space.mit.edu/~kcooksey/teaching/AY5/MisconceptionsabouttheBigBang_ScientificAmerican.pdf Cosmological Constant & its Problems: http://hosting.astro.cornell.edu/academics/courses/astro1109/readings/AConstantProblem.pdf Quintessence / K-Essence: https://arxiv.org/abs/astro-ph/0006373 Phantom Energy & the Big Rip: https://arxiv.org/abs/astro-ph/0302506 CHAPTERS: 0:00 Introduction 2:27 Accelerating Expansion 5:09 Einstein's Greatest Blunder 8:26 How Space Expands 12:11 Redshift & Standard Candles 17:03 Type 1a Supernova Searching 19:25 Λ-CDM 22:08 Baryonic Acoustic Oscillations 26:27 Future Missions to Study Dark Energy 28:46 Vacuum Fluctuations 32:29 Quintessence 34:43 Phantom Energy 37:17 The Big Rip (NON-ENGLISH VIEWERS) To get subtitles in another language, click the [CC] button in the bottom right corner of the screen, then click the Settings (cogwheel) icon next to it, click "Subtitles / CC" and click "Auto-Translate", and select your language from there. Cosmological Constant