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NASA has discovered four unusually bright galaxies as they appeared early on it the universe’s existence, more than 13 billion years ago. WSJ’ Monika Vosough reports. (Photo: NASA/ESA)

“NASA Finds Four Ancient Galaxies in Remote Universe” is categorized as “world”. This video was licensed from Grab Networks. For additional video content, click the “video” tab at the top of this page.

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