ScienceGlobal issuesThe mystery behind dark matter and dark energy To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceGlobal issues06/30/2023June 30, 2023ESA’s Euclid mission will target 10 billion galaxies and try to understand how dark matter is distributed in space and how the proportion of dark energy has changed over time. https://p.dw.com/p/4TGiKAdvertisement