THE DARK SIDE - Black Holes And Invisible Matter | SPACETIME - SCIENCE SHOW

We are surrounded by dark matter and dark energy. Mysterious forces that permeate the universe play a fundamental role in determining its evolution. Scientists can observe the effects of these cosmic enigmas. As of yet, they have found nothing. Space, an infinite vastness - with nothing in it. In a volume of about 13,000 by 13,000 by 13,000 kilometers, which is roughly the volume of the earth, there's the mass equivalent of a small grain of sand. Not only that, when you examine this grain of sand, you find it consists of ghostly particles. Particles that pass through everything without leaving behind a trace. And then there's dark energy. What exactly are dark matter and dark energy? 🚀 Watch all SPACETIME episodes    • SpaceTime - Science Show   🔔 Subscribe our full documentary channel    / @weltdocumentary   #DarkEnergy #DarkMatter #SpaceTime