Luna Projects

Far-side crater radio telescope

https://www.nasa.gov/general/lunar-crater-radio-telescope-lcrt-on-the-far-side-of-the-moon/

https://www.jpl.nasa.gov/news/lunar-crater-radio-telescope-illuminating-the-cosmic-dark-ages

https://www.nasa.gov/general/farview-observatory-a-large-in-situ-manufactured-lunar-far-side-radio-array/

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Luna solar energy farm

to power interstellar craft by laser

https://en.wikipedia.org/wiki/Photon_rocket

and solar sail