The European Space Agency’s Euclid space mission has revealed its first full-color images of the cosmos. Over the next six years Euclid will observe the shapes, distances and motions of billions of galaxies out to 10 billion light-years, creating the largest cosmic 3D map ever made. Euclid can create a remarkably sharp visible and infrared image across a huge part of the sky in just one sitting. It aims to investigate how dark matter and dark energy have made our Universe look like it does today. While 95% of our cosmos seems to be made of these mysterious ‘dark’ entities, their presence causes only very subtle changes in the appearance and motions of the things we can see.