Terraforming...
Since space exploration is in its infancy, a good deal of terraforming remains speculative. Based on what we know of our own world it seems possible to affect the environment in a deliberate way in order to change it; however the feasibility of creating an unconstrained planetary biosphere that mimics Earth on another planet has yet to be verified. Mars is considered by many to be the most likely candidate for terraformation. Much study has gone into the possibility of heating the planet and altering its atmosphere, and NASA has even hosted debates on the subject. However, a multitude of obstacles stand between the present and an active terraforming effort on Mars or any other world. The long timescales and practicality of terraforming are the subject of debate. Other unanswered questions relate to the ethics, logistics, economics, politics and methodology of altering the environment of an extraterrestrial world.
From wikipedia: http://en.wikipedia.org/wiki/Terraforming
Etichette: peanuts


