Dark energy is the force causing our universe to expand at an accelerating rate. But current theories of our universe’s formation predict more dark energy than we observe.
Astronomers have speculated that more dark energy would accelerate the universe’s expansion even faster, spreading matter too thin before it could turn into stars or planets, thus preventing the formation of life. The multiverse theory explains our universe’s ability to foster life by stating that our universe is one of many, but it’s lucky — there are many other universes with more dark energy, and thus no life. In this case, the multiverse would be largely inhospitable.
However, an international team of researchers recently conducted simulations under the Evolution and Assembly of GaLaxies and their Environments (EAGLE) project that contradict this theory.