Hubble Spots Spirals Within a Spiral
#NASA #ImageOfTheDay A galaxy having so many distinct rings is rare, making NGC 2273 unusual. Galaxy NGC 2273 hosts an inner ring and two outer “pseudorings." Rings are created when a galaxy's spiral arms appear to loop around and nearly close upon one another.
http://www.nasa.gov/image-feature/goddard/2020/hubble-spots-spirals-within-a-spiral