Gravity on the moon is way to low to hold an atmosphere, but underground or domes seems the way to go for holding atmosphere where this bacteria water and sunlight could go to work breaking down minerals and building up cyanobacteria that could be fed to something else that could be harvested for food or energy.
Gravity on the moon is way to low to hold an atmosphereYep, with our current technology and as things are right now. Who knows what will be developed in the next 100 years or or so to provide some type of atmosphere or gravitational fix.
In fact, I would not be surprised if in a couple of hundred years or so, the solar energy striking the lunar surface could power the entire earth. The possibilities are there.