“On Mars, the crumbling remains of ancient civilizations may be found, mutely testifying to the one-time glory of a dying world.” WorldMayFoundDyingCivilizationGloryRemainsAncientOne TimeMarsCrumblingAncient CivilizationsTestifying Author:P. E. Cleator
“Even present-day fuels possess more than enough energy, if only we knew how to release and use it. Just as molecular energy is so freely used to-day, so atomic energy may bring interplantary travel within easy reach to-morrow.” IfsMayEnoughUseUsedEnergyEasyFutureReleaseFuelAviationPredictionsPresent DayMorrowAtomic Energy Author:P. E. Cleator