Light reflecting off of the primary and secondary mirrors of NASA’s James Webb Space Telescope as mirrors are being aligned Credits: NASA/M. McClare
About 1 million miles away from the nearest eye surgeon, NASA’s James Webb Space Telescope will be able to perfect its own vision while in orbit. Though the Webb telescope will focus on stars and galaxies approximately 13.5 billion light-years away, its sight goes through a similar process as you would if you underwent laser vision correction surgery to be able to focus on an object 10 feet across the room...
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