Hubble Captures 'El Gordo,' the Largest Galaxy Cluster Ever Discovered
If you think the sun is big, think again????When you multiply the weight of our star by 3 million billion, you’ll get “El Gordo”????the largest, hottest *and* brightest known galaxy cluster in the universe????Hubble showcases El Gordo (Spanish for “the fat one”) in all its glory????Galaxy clusters are groups of galaxies held together by gravity????El Gordo, home to hundreds of galaxies, is more than 7 billion light-years from Earth????Researchers found the behemoth is actually two galaxy clusters crashing into each other????It was first discovered in 2012 by ESO, NASA, and Atacama Cosmology telescopes????