NASA astronauts Steven Smith & John Grunsfeld servicing the Hubble Space Telescope, December 1999 [2046x2030] via /r/spaceporn https://ift.tt/2wADDvr
via Tumblr https://ift.tt/2Uzpu9V
NASA astronauts Steven Smith & John Grunsfeld servicing the Hubble Space Telescope, December 1999 [2046x2030] via /r/spaceporn https://ift.tt/2wADDvr
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