Image: The Stephan's Quintet of galaxies
Monday, December 21, 2015 - 08:02
in Astronomy & Space
The Stephan's Quintet of galaxies was discovered by astronomer Édouard Stephan in 1877. At the time, however, he reported the discovery of 'new nebulae', as the concept of other galaxies beyond our Milky Way was only formalised in the 1920s.