The Dark Energy Mystery

In 1998, two teams of scientists measured the universe's rate of expansion, expecting to find it slowing down on route to a collapse. But instead, they found the opposite- the universe's expansion appears to be accelerating, having expanded more in the latter half of its life. In attempting to explain this mysterious behaviour, they revived one Einstein's long-since-forgotten ideas.

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

CHAPTERS:

(00:00) Introduction

(02:27) Accelerating Expansion

(05:09) Einstein's Greatest Blunder

(08:26) 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