A new map of the universe may turn gravity on its head
Scientists have released the largest map of the universe ever compiled. Millions of galaxies have been surveyed, stretching back 11 billion years, most of the age of the cosmos. According to many scientists, this data, combined with other observations, presages a major reassessment of what we know about the universe: possibly, for the first time, revealing a crack in Einstein’s theory of gravity. The Dark Energy Spectroscopic Instrument (DESI) is attached to a large telescope at the Kitt Peak National Observatory in Arizona. Each night it measures the positions of and distances to thousands of galaxies. Galaxies exist in groups and their motions are influenced by other, nearby galaxies.
