Word: solarized
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Dates: during 1960-1969
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...same wave length as radiation from their material counterparts, making them useless for identifying distant antimatter. On the other hand, one unmistakable characteristic of matter and antimatter is that whenever the two meet they annihilate each other. This leads Alfvén to concede that two bodies in the solar system-the moon and the sun-are indisputedly composed of matter. There was no annihilatory reaction when Soviet and U.S. rockets hit the moon; there is no such reaction when particles streaming from the sun encounter the earth's atmosphere...
...massive arches. He concluded that the holes formed a primitive eclipse computer. By placing a stone in each of six appropriate holes and moving them at appropriate times one hole around the circle, he decided, the Stonehenge astronomers had probably been able to tell accurately the dates when solar and lunar eclipses were apt to take place...
...centuries they were objects of excitement and superstition, often feared as precursors of grave and cataclysmic events. Today some astronomers speculate that comets are the debris flung off by larger planets out beyond the earth. The most widely accepted theory holds that a vast cloud completely surrounds the solar system. According to Fred Whipple of the Smithsonian Observatory, about 4.6 billion years ago the cloud (a giant snowstorm") began to condense into separate bodies-"dirty snowballs" of dust and ices made up of methane, ammonia and water. Some of these bodies were captured by the outer planets and fell onto...
Despite their fiery appearance, comets are not actually aflame but glow mostly from fluorescence due to solar radiation. The closer they get to the sun, the brighter and larger they grow. One of the rare "sungrazing" comets, Ikeya-Seki will whip around the sun at a maximum speed of about 300 miles per second, passing within 300,000 miles of the sun's surface. Astronomers discounted some predictions that the comet will collide with the sun. But it could be broken up by the sun's radiation and gravitational field. If it survives its solar encounter, the comet...
...predicted that it will collide with the sun instead of passing by it. American scientists maintain that it will make it by, but they are puzzled by observations that show the comet to be much hotter than expected. They also admit the possibility of an explosion due to solar stresses...