Image: A strange ring galaxy
(PhysOrg.com) -- Is this one galaxy or two? Astronomer Art Hoag first asked this question when he chanced upon this unusual extragalactic object.
(PhysOrg.com) -- Is this one galaxy or two? Astronomer Art Hoag first asked this question when he chanced upon this unusual extragalactic object.
Astronomy
Aug 27, 2010
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