A look back at 25 years of the Hubble Space Telescope

The space telescope created by NASA and ESA has taught us countless things about the universe that surrounds us, and its breathtaking images have inspired a whole new generation of scientists. (And yes, they also make great computer wallpapers.) For much of Hubble’s early life in space, however, it was easy to look at the project as a failure. Outlets at the time called it “a national joke.” A tiny imperfection in the mirror meant that all of the images it took were fuzzy and out of focus, and it took five separate repair missions to get it to the excellent shape it’s in today.

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