Researchers have found a new way to measure dark #energy – the mysterious force that makes up more than two-thirds of the #universe and is responsible for its accelerating expansion – in our own #cosmic backyard.
#Andromeda is the only #galaxy that isn’t running away from us, so by studying its mass and movement, we may be able to make some determinations about dark energy.
#astronomy #cosmology
https://www.cam.ac.uk/research/news/dark-energy-could-be-measured-by-studying-the-galaxy-next-door
Paper by Benisty et al. (2023):
https://iopscience.iop.org/article/10.3847/2041-8213/ace90b
