
Scientists have been gifted with a clearer picture of the expansion of the universe and dark energy, the mysterious force driving the acceleration of this expansion, than ever before. This comes courtesy of the analysis of six years' worth of data collected by the Dark Energy Camera (DECam) mounted on the U.S. National Science Foundation Víctor M. Blanco 4-meter telescope.
The data analysed consists of 758 nights of observations of one-eighth of the sky conducted by the Dark Energy Survey (DES) Collaboration between 2013 and 2019, during the deep, wide-area survey of the sky conducted using the 570-megapixel DECam, which recorded information from 669 million galaxies located billions of light-years from Earth.