Cosmology’s two biggest puzzles: 1. Hubble tension, a mismatch in measurements of how fast the Universe is expanding. 2. The observations of bright galaxies that existed when the early Universe was less populated.
Now, MIT scientists suggest that early dark energy could solve both puzzles. Dark energy is believed to be a key driver for the expansion of the Universe today. Likewise, early dark energy is a theoretical phenomenon that influences the Universe’s expansion in its first moments before disappearing entirely.
