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  • Hubble Space Telescope spots double quasars in merging galaxies

    An artist’s conception shows the brilliant light of two quasars residing in the cores of galaxies in the chaotic process of merging. The gravitational tug-of-war between the two galaxies stretches them, forming long tidal tails and igniting a firestorm of star birth.   Graphic courtesy NASA, the European Space Agency and J. Olmstead of the Space Telescope Science Institute.

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