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this post was submitted on 13 Nov 2023
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Could we use lasers instead of radio, like the Starlink laser inter-links or the NASA ILLUMA-T/LCRD demonstration?
Maybe in the future, but the existing Mars orbiters need to hear a strong radio signal. And laser communication has not yet been tested outside of Earth orbit. It will need to be significantly scaled up to handle the 2-3AU distance.