Galactic bull's-eye came naturally | Science News

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Galactic bull's-eye came naturally

A strange cosmic object isn't the result of a galactic crash

By
2:34pm, August 24, 2011

A galactic oddball may have spun itself into its strange bull’s-eye shape, report astronomers probing the origins of Hoag’s Object.

The galaxy, made up of a golden sphere of stars in the middle of a much bigger star-studded hula hoop, had once been thought to have formed as the result of a cosmic smashup.

Now, using both ground- and space-based observations, Israeli and Russian astronomers propose that the object formed that way on its own. The golden core formed first, at least 10 billion years ago. Soon after, the core skirted itself with a disk of hydrogen gas that it pulled from surrounding material. The disk’s spiral pattern could be caused by rotation of the

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