By staring at the sky for over 200 hours, the Spitzer Space Telescope collected light that finally reached Earth after a 13-billion-year voyage through space.
These Ancient Galaxies Are Far Brighter Than Expected. Does That Signal a Cosmic Turning Point?
SPACE.com - 12 May 2019 13:54
By staring at the sky for over 200 hours, the Spitzer Space Telescope collected light that finally reached Earth after a 13-billion-year voyage through space.
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