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The Chandra X-ray Observatory has captured galaxies VV 340 North and VV340 South at the early stages of their merge, an interaction that will take millions of years. This cosmic punctuation mark is located about 450 million light years from Earth.
Credit: X-ray NASA/CXC/IfA/D.Sanders et al; Optical NASA/STScI/NRAO/A.Evans et al
