Fresh X-Rays Reveal a Universe as Clumpy as Cosmology Predicts
Clusters of hundreds or thousands of galaxies sit at the intersections of giant, crisscrossing filaments of matter that form the tapestry of the cosmos. As gravity pulls everything in each galaxy cluster toward its center, the gas that fills the space between the galaxies gets compressed, causing it to heat up and glow in X-rays. The eRosita X-ray telescope, lofted into space in 2019…
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