A new image from ESA’s Euclid telescope shows approximately 1,000 galaxies belonging to the Perseus cluster — a cluster of galaxies 240 million light-years away in the constellation of Perseus — and more than 100,000 additional galaxies further away in the background. This image from ESA’s Euclid spacecraft shows the Perseus galaxy cluster. Image credit: ESA / Euclid / Euclid Consortium / NASA / J.-C. Cuillandre, CEA Paris-Saclay /...