The Universe is Expanding Faster These Days and Dark Energy is Responsible. So What is Dark Energy? https://science.nasa.gov/universe/the-universe-is-expanding-faster-these-days-and-dark-energy-is-responsible-so-what-is-dark-energy/ #NASA #DarkEnergy #DarkMatter #Euclid #Galaxies #JamesWebbSpaceTelescopeJWST #NancyGraceRomanSpaceTelescope #SPHERExSpectroPhotometerForTheHistoryOfTheUniverseAndIcesExplorer #StellarEvolution #TheBigBang #TheUniverse
The Universe is Expanding Faster These Days and Dark Energy is Responsible. So What is Dark Energy? - NASA Science
Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way.science.nasa.gov