Putting Things in Perspective

摘要

Astronomers are reaching ever deeper into the distant universe. A team led by Masayuki Tanaka of the European Southern Observatory near Munich, Germany, has created a 3D image of a chunk of the universe that shows a huge, previously unknown cluster of galaxies almost 7 billion light-years away. The galaxies (in red), revealed by powerful optical telescopes in Chile and Hawaii, extend over at least 60 million light-years.