re: Ditto
Ed wrote: Mars is a cold dead radioactive rock. Whether enough volatiles remain to turn it into a habitat useful for mankind as a whole is still a very open question.
Chris writes: Science allows for errors and sure it is an open question...to a point. Water is in the atmosphere of Mars and Mars has an actual atmosphere with CO2 and other useful gases... Even if Mars was as mineralogical vacuous as the Moon is it has many time the surface area (as much as the dry land mass of Earth)!
"Mars is a cold dead radioactive rock." And the Moon is in spades.