... English (USA) . ... Galaxy Clusters . ... An extremely hot, massive young galaxy cluster БЂ” the largest ever seen in the distant Universe БЂ” has been studied by an international team using ESOБЂ™s Very Large Telescope (VLT) in the Atacama Desert in Chile along with NASA's Chandra X-ray Observatory and the Atacama Cosmology Telescope. ... The newly discovered galaxy cluster [1] has been nicknamed El Gordo БЂ” the "big" or "fat one" in Spanish. ... El Gordo: a massive distant merging galaxy cluster ...