Galaxy Collision Causes Role Reversal (NASA, Chandra, 3/29/07)

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Keywords: (nasa, -ray, 3c442a, array, astronomy, astrophotograhy, astrophysical, black, blackhole, chand, chandra, chandraxrayobservatory, collision, galaxy, hole, large, nasa, observatory, perfect, photographer, reversal, role, rubyphotographer, smithsonian, smithsonianastrophysicalobservatory, space, telesope, theperfectphotographer, verylargearray, xraytelesope