I don't know much about what they do up there, but I know one thing they did: They launched the Hubble Space Telescope, then when it didn't work, they sent astronauts into space to fix it, and finally they went back one more time to extend the Hubble's lifetime and improve its amazing powers to see the most distant parts of the Universe.
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1 comment:
Quite useful material, thanks so much for the post.
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