CMI Video | The Big Bang needs a mystical anti-gravity force @CMIVideo | Uploaded 2 years ago | Updated 1 day ago
Dark energy is a force required by the Big Bang model that repels the universe apart so that it's expansion is accelerating. It apparently composes 67% of the mass/energy of the universe yet cannot be detected in the lab. Or, perhaps the Big Bang is wrong and there is no Dark Energy.
Watch the entire episode at: https://youtu.be/pi39Hxh2vVc