Why not just a few Helium-3 catching "nets" in and/or near Earth orbit, surely cheaper.Helium-3 is, however, emitted by the Sun within its solar winds. Our atmosphere prevents any of this helium-3 arriving on the Earth. However, as it does not have an atmosphere, there is nothing to stop helium-3 arriving on the surface of the Moon and being absorbed by the lunar soil.
But we should still go
