Like any piece of technology, large science telescopes sometimes break down. Whether it’s a problem with an onboard computer or a piece of hardware, telescopes are highly technical machines that often need some maintenance. That can be challenging enough with large telescopes on Earth, but it’s much, much harder when the telescope is in space. Engineers do everything they can to avoid needing to make fixes to space telescopes. Spacecraft are typically designed with multiple layers of redundancy so
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