Onderzoeksbevinding: het heelal is (inderdaad) plat
10 June 2020
12:33
Most Precise Tests of Dark Energy and Cosmic Expansion Yet Confirm the Model of a Spatially Flat Universe
A new paper has shown how large structures in the distribution of galaxies in the Universe provide the most precise tests of dark energy and cosmic expansion yet.
The study uses a new method based on a combination of cosmic voids – large expanding bubbles of space containing very few galaxies – and the faint imprint of sound waves in the very early Universe, known as baryon acoustic oscillations (BAO), that can be seen in the distribution of galaxies. This provides a precise ruler to measure the direct effects of dark energy driving the accelerated expansion of the Universe.
