Can the Moon be given an earthlike atmosphere?

> The whole Moon is covered with a dust layer (rigolith)

It's regolith, not rigolith (as Ed already pointed out to you), and you
need to look at its composition. In particular, nitrogen, which is by
far the major component of an Earthlike atmosphere, is very scarce on
the Moon; it's about 100 grams per cubic meter of lunar regolith.
That's a trace element, at best, and nowhere near abundant enough to
make an atmosphere out of. Any space settlement is going to have to
import its nitrogen from somewhere else -- probably the Earth, but
possibly from some other NEA with high volatile content.

Your notion of causing a "chain reaction" that magically creates an
Earthlike atmosphere without energy input is nonsense, too.

Joe Strout -- joe@...