[Wonder Warthog]

"Scientists have acknowledged the usefulness of H3 in helping achieve nuclear fusion success. The moon appears to be a large source of naturally occurring H3, a commodity that would be of such value that the transport back to Earth would be economically feasible."

ARRRGGHHH!!!! Journalists "never" get it right. It ain't H3 (tritium)--tritium is easy to make by bombarding other light elements with neutrons. The isotope in question is He3, the rare light isotope of helium (normally He4).

The sun pumps out a lot of He3 in the solar wind--which impacts and is trapped on the lunar surface.

To quote from (http://exn.ca/apollo/Future/):

"Unlike the Earth, which is insulated by its atmosphere, the Moon is continuously buffeted by solar winds. These carry substances into the lunar soil that wouldn’t be found on Earth. One of the most important of these is Helium 3, a helium isotope which is very rare on Earth. Helium 3 (or He3) has been proven in limited experimental conditions to work in fusion reactions, and is a promising fuel for fusion power generation because, in contrast with other fusion fuels, it isn’t radioactive itself, and when it is fused, releases no radioactivity."

[Cincinatus' Wife]

Using solar power seems easier.

[Cincinatus]

The sun pumps out a lot of He3 in the solar wind--which impacts and is trapped on the lunar surface.

True enough, except that not much 3He is present in the lunar soil -- the highest concentrations are on the order of one part per billion.