If you can't make out the words on street signs, you correct your vision by wearing glasses. If NASA sends up a multi-billion-dollar telescope that can't make out the stars in galaxies, well — it corrects its vision with glasses, too. In essence, anyway. That's what happened with the Hubble Space Telescope: it wore "glasses" for more than 15 years.
If Telescopes Could Squint
An Ingenious Solution
Watch And Learn: Our Favorite Content About The Hubble Space Telescope
Key Facts In This Video
Hubble was launched with an irregularly shaped mirror that kept it from being able to focus properly. 00:43
In 1993, NASA equipped Hubble with what amounts to eyeglasses, correcting its "vision" and allowing it to capture crystal clear images of the universe. 01:08
Over the years, the Hubble Telescope has sent back many images, including highlights such as The Pillars of Creation, Comet Shoemaker-Levy 9, and the Deep Field image. 01:28
The Man the Hubble Space Telescope was Named After
Hubble Space Telescope - Extreme Deep Field
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