![An image of Hubble's Power Control Unit shows many wires and connectors.](https://science.nasa.gov/wp-content/uploads/2023/04/hubble_pcu-jpg.webp?w=4096&format=png)
hubble_pcu
All of the power for the Hubble Space Telescope runs through its “heart,” the Power Control Unit. It has 36 individual connectors, making it a difficult component to replace.
Credits: NASA
Image CreditNASA
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All of the power for the Hubble Space Telescope runs through its “heart,” the Power Control Unit. It has 36 individual connectors, making it a difficult component to replace.