Comment 18 by ufischer

I hope this follows the pattern and we start terraforming our Moon, Mars and the suitable moons of the gas giants within the next few years.

I think terraforming our Moon is a non-starter. Terraforming Mars would take thousands of years during which time it would create problems for colonists, such as melting ice causing travel problems and subsidence. Colonists would have to live in pressurised habitation and wear suits to go outside. I can see little merit in causing massive upheavals over centuries for an uncertain outcome, when bases could be established without these complications. I believe Mars is too small, too cold, limited in it's ability to retain an atmosphere and its rotational stability too suspect.

As I said @5 terraformng somewhere like Titan could be an option in the future when the Sun heats up and expands. Probes may also find suitable exoplanets.