Milky Way shakes: The cosmic collisions that made our galaxy

By Thomas Lewton A galaxy passes through other galaxies in a group known as Stephan’s quintet X-ray (NASA/CXC/CfA/E.O’Sullivan); Optical (Canada-France-Hawaii-Te​lescope/Coelum) HUMANS have always been captivated by the Milky Way. To the ancient Greeks, it was a squirt of breast milk, while the Mayan farmers of Mesoamerica saw it as a growing maize stalk. Today, astronomers … Read more