“Am I willing to go to Mars? Yes, but I'm not willing to spend nine months getting there, then wait 18 more months until the planets align to come home.” HomeWaitingWillingPlanetsMonthsNineComing HomeMarsNine Months Author:Gene Cernan
“Chemical propulsion is obsolete to go anywhere other than the moon. Three days - that's acceptable. But for Mars, we need propulsion technologies to get us there in, say, 60 days - then spend whatever length of time we want to spend and return when we want to come home.” WantNeedsHomeThreeTechnologyReturnMoonLengthComing HomeChemicalsAcceptableMarsObsoletePropulsion Author:Gene Cernan