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Jim MacDonald's avatar

Cool, but they need power in order to work. Can we assume they're all solar powered? They must also have batteries for when they're in the shadow of the earth...

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Paula Niziak's avatar

Matthew, I am so happy that someone as smart as you is our future.

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Emory's avatar

Wow! I had no idea about prograde and retrograde orbits! Learn something new every day!

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