“Hubble Digs into Cosmic Archaeology” was uploaded to Flickr

This Hubble infrared image is part of an observing program that imaged 41 massive galaxy clusters to find the brightest distant galaxies for theJames Webb Space Telescope to study. via NASA ift.tt/2zIrErL
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Hubble Digs into Cosmic Archaeology was taken on June 09, 2017 at 10:36AM