Phys.org on MSN12d
Image: Exceptionally rare triple ring galaxy
Galaxies are classified into elliptical, lenticular, and spiral (or barred spiral) galaxies. Galaxies with irregular shapes ...
Live Science on MSN7d
Researchers spot rare 'triple-ring' galaxy that defies explanation
Spiral galaxies, such as our Milky Way ... currently regards ring galaxies as the result of collisions. Whether this ...