Word: planet
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Dates: during 1950-1959
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...astronomers long ago cut the earth down to size, proved it to be only a minor planet revolving around the sun. The sun, on closer inspection, turned out to be only a middle-rank star, like several million others. But the "home" galaxy-the Milky Way-continued to seem twice as big as any other galaxy: it was something that earthlings could be proud...
...would be involved in a space ship leaving earth. Smalt as it would be in relation to the earth's mass, the rocket blasts would be sufficient to knock the earth slightly out of kilter in the delicate balance between centrifugal force and gravitation which now keeps our planet from either whirling loose from the solar system or falling into...
...hands, and a dial needle records changes in current when he tells about deeply disturbing things in his past. Hubbard found that some of his subjects could not locate "painful prenatal experiences" anywhere on earth, but when he asked them whether these things had happened on another planet, the needle jumped like crazy...
...Long Voyage Home. How to get back home is the really tough problem. If the space men want to see the earth again, they must climb back out of the gravitational field of the target planet. This would be about as difficult as the painful escape from the earth, and every pound of fuel for the effort would have to be brought from the earth...
...exists on the earth. Mars is the best bet, but it is not too promising. U.S. Astronomer Percival Lowell, who died in 1916, spent 30 years studying the "canals" on Mars. He was convinced (and convinced a large public) that they were attempts by Martians to irrigate their arid planet with water from its polar snowcaps. Modern astronomers believe that Lowell was describing more than meets science's eye, but the Lowell hypothesis is still popular among space enthusiasts...