Galactic bull's-eye came naturally

Galactic bull's-eye came naturally

http://www.sciencenews.org/view/gene...came_naturally

"When Arthur Hoag first discovered the object in 1950, he thought the
ring was the image of a distant galaxy smeared into a circular halo of
light by the gravity of the dense central orb. Not until 1987 did
researchers confirm that the orb and ring were actually part of the same
galaxy. Theories about why Hoag’s Object looks so weird have ranged
since then from a transient evolutionary phase to a galactic collision
or near miss, but none has wholly satisfied.

"The object could be a good test bed for understanding how important
gas-snatching is in already formed galaxies, the researchers say".

See:
http://www.sciencenews.org/view/gene...came_naturally