But getting there is the easy part says Regis. "Mars is a dead, cold, barren planet on which no living thing is known to have evolved, and which harbors no breathable air or oxygen, no liquid water and no sources of food, nor conditions favorable for producing any. For these and other reasons it would be accurate to call Mars a veritable hell for living things, were it not for the fact that the planet’s average surface temperature is minus 81 degrees Fahrenheit." These are only a few of the many serious challenges that must be overcome before anyone can put human beings on Mars and expect them to live for more than five minutes says Regis. "The notion that we can start colonizing Mars within the next 10 years or so is an overoptimistic, delusory idea that falls just short of being a joke."