Where Does Dark Energy Come From?

Why is the expansion of the universe speeding up when gravity should be pulling everything back together? In this episode of The Sleeping Physicist, we explore dark energy, negative pressure, the cosmological constant, vacuum energy, quintessence, modified gravity, and why our best theories still cannot explain where the force driving cosmic acceleration actually comes from. 🎧 Listen on Spotify: https://open.spotify.com/show/4YMLALf... ☕ Support this channel: https://buymeacoffee.com/thesleepinr Like, subscribe, and comment what topic you'd like next. #DarkEnergy #Cosmology #Astrophysics #Universe #GeneralRelativity #QuantumPhysics #CosmologicalConstant #TheSleepingPhysicist