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How does the HST Capture an Image and then Send it to Earth?
place-holder Let's say we want to take a picture of Galaxy M100, located more than 50 million light years away from Earth. There are four basic steps we need to go through:

Step #1: Gather and focus light
Step #2: Turn the light into an electronic signal
Step #3: Transmit the electronic signal to Earth
Step #4: Turn the electronic signal back into light.

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