dark energy

The Dark Energy Survey has posted this detailed image of the Fornax galaxy cluster. The survey will measure the distributions of galaxies that are far away from Earth and compare them to the patterns of galaxies closer to Earth. Differences in these patterns give indispensable clues about how dark energy has affected spacetime over the last several billions of years.

Two teams of physicists at the U.S. Department of Energy’s Fermilab and Lawrence Berkeley National Laboratory (Berkeley Lab) have independently made the largest direct measurements of the invisible scaffolding of the universe, building maps of dark matter using new methods that, in turn, will remove key hurdles for understanding dark energy with ground-based telescopes.