When we begin to consider both the civil and military aspects of space use in the decades ahead, however, rocket power acquires fresh importance. It is, as one expert says, "the key to space supremacy."[13] Not only is much heavier thrust required for ventures farther out into space, but probably thrust developed by different means as well, such as atom, ion, or even photon power.
This suggests the possibilities of weapons which today are considered to be "way out" or "blue sky"—in short, farfetched. Yet they include the ideas of men with solid scientific training as well as vision. For example, Germany's great rocket pioneer, Prof. Hermann Oberth, "has proposed that a giant mirror in space (some 60 miles in diameter) could be used militarily to burn an enemy country on Earth. For peaceful purposes, however, such a space mirror could be used to melt icebergs and alter temperatures."[14] Another reputable German scientist who has been working for a number of years on photon (electromagnetic ray) power as a source of propulsion, declares that if such power is possible so is "the idea of a 'death ray,' a weapon beam which burns or melts targets, such as enemy missiles, on which it is trained. The idea has been familiar in science fiction for a long time and has been scorned often enough. Yet, if the photon rocket is possible so is the ray gun."[15]
Still another proposal, one made to the Congress, involves use of the Moon as a military base. "It could, at some future date, be used as a secure base to deter aggression. Lunar launching sites, perhaps located on the far side of the Moon, which could never be viewed directly from the Earth, could launch missiles earthward. They could be guided accurately during flight and to impact, and thus might serve peaceful ends by deterring any would-be aggressor."[16]
In spite of the fact that ideas such as these are being sponsored by competent and responsible scientists, other scientists equally competent and responsible sometimes cry them down as impractical, impossible or even childish. One engineer, for instance, describes maneuverable manned space vehicles as having "no military value," bases on the Moon as having no military or communications use, and the idea of high velocity photon-power for space travel as "a fantasy strictly for immature science fiction." He also characterizes the reconnaissance satellite, which U.S. military authorities have long since programmed and even launched, as being "definitely submarginal * * *. A fraction of the cost of a reconnaissance satellite could accomplish wonders in conventional information gathering."[17]
Controversies such as these are difficult for the person who is neither a scientist nor a military expert to judge. One is inclined to recall, though, the treatment received by General Billy Mitchell for his devotion to nonconventional bombing concepts; the fact that the utility of the rocket as developed by America's pioneer, Dr. Robert H. Goddard, was generally ignored during World War II; the fact that it took a personal letter from Albert Einstein to President Roosevelt to get the Manhattan Project underway.
Yet today the bomber, the missile, and the nuclear weapon form the backbone of our military posture.
In other words, history seems to support the proposition that no matter how remote or unlikely new discoveries and approaches may first appear, the military eventually finds a way to use them.
Will it be any different with space exploration?
OUR POSITION IN THE INTERNATIONAL COMMUNITY
Like the military values of space research, the practical value of space exploration in terms of world prestige has also been acknowledged almost from the beginning of the satellite era.