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ALMA Sees Einstein Ring in Stunning Image of Lensed Galaxy

ALMA Sees Einstein Ring in Stunning Image of Lensed Galaxy

Astronomers have discovered that a distant galaxy -- seen from Earth with the aid of a gravitational lens -- appears like a cosmic ring, thanks to the highest resolution images ever taken with the Atacama Large Millimeter/submillimeter Array (ALMA). Forged by the chance alignment of two distant galaxies, this striking ring-like structure is a...