This week on The Cosmic Companion, we talk about the mysteries of Dark Matter and Dark Energy. Later in the show, we will be joined by René Laureijs, Euclid Project Scientist, from The European Space Agency.If one were to look at all the matter and energy in the Universe, about 68% is dark energy, 27% is dark matter, and just five percent is everything we see around us. 95% of everything out there — is totally unknown. [That’s chicken feed. What IS most of the Universe?] Good question! Get full access to The Cosmic Companion w/ James Maynard at thecosmiccompanion.substack.com/subscribe