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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:    / @spacewavecr   SpaceWave's Channel:    • Dark Ambient Music - SEA's "DARK ENER...   Thumbnail made by Wimptastic:    / @wimptastic228   You can now support this channel on Patreon:   / 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:   / discord   Listen to this Video:   / 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.    • Sleeping Space Playlist   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/31... 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-... SOURCES OF INFORMATION: Defining Dark Energy & some Theories on its Nature: https://astronomy.swin.edu.au/cosmos/... 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/sc... Concordance Cosmology & Lambda-CDM: https://phys.libretexts.org/Bookshelv... BAOs and Standard Rulers: https://arxiv.org/abs/0801.0642 Misconceptions About the Big Bang: https://web.archive.org/web/201107192... Cosmological Constant & its Problems: http://hosting.astro.cornell.edu/acad... 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