National Radio Astronomy Observatory (NRAO): A billion light-years from Earth lies one of the universe's most massive structures, a giant elliptical galaxyElliptical GalaxyA galaxy that is round or elliptical in outline, typically containing little gas and dust, no spiral arms or disk, mostly older stars, which range in shape from spherical to "football" shaped, and few hot, bright stars. surrounded by a sprawling cluster of other galaxies known as Abell 2597. At the core of the central galaxy, ...
National Radio Astronomy Observatory (NRAO): A billion light-years from Earth lies one of the universe's most massive structures, a giant elliptical galaxyElliptical GalaxyA galaxy that is round or elliptical in outline, typically containing little gas and dust, no spiral arms or disk, mostly older stars, which range in shape from spherical to "football" shaped, and few hot, bright stars. surrounded by a sprawling cluster of other galaxies known as Abell 2597. At the core of the central galaxy, ...
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