Hoag’s object, which is a galaxy within a galaxy within a galaxy, has befuddled stargazers since astronomer Arthur Hoag discovered it in 1950.
Source: https://www.livescience.com/hoags-object-perfect-ring-mystery.html
Only the Autodidact is Free
Hoag’s object, which is a galaxy within a galaxy within a galaxy, has befuddled stargazers since astronomer Arthur Hoag discovered it in 1950.
Source: https://www.livescience.com/hoags-object-perfect-ring-mystery.html