Dark Energy’s Effect Over Time Tracked by Astronomers
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Description
A study using NASA's Chandra X-ray Observatory, ESA's XMM-Newton and the Sloan Digital Sky Survey tracked dark engergy back to one billion years after the Big Bang. -- Learn more about it: http://chandra.cfa.harvard.edu/photo/2019/dark/
Credit: NASA/CXC/A. Hobart
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