A decade of cosmic discovery

Share Astronomers analyze 61 million galaxies to confirm a Universe dominated by dark matter and dark energy After 10 years of observing the shapes of 61 million distant galaxies, the UNIONS (Ultraviolet Near Infrared Optical Northern Survey) collaboration is sharing data that provides strong evidence supporting the standard model of cosmology that the universe is dominated by dark matter and dark energy. The data was collected with the Canada-France-Hawaii Telescope using its ultra-widefield MegaCam instrument and covers 3,500 square degrees of the sky. This is the first survey of this scale