The discovery of a giant galaxy cluster—one of the largest objects in the universe—may force astronomers to rethink how these colossal structures, and the galaxies that inhabit them, evolve.
“We had to cast a wide net to find such a unique cluster,” says co-author Gil Holder, a physics professor at McGill University.
“The Phoenix was found amid hundreds of new galaxy clusters discovered using the South Pole Telescope as part of a project aimed at studying dark energy, the material that is driving the accelerating expansion of the universe.”
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Photo credit: NASA/CXC/M.Weiss