Reaching Fore The Stars

For thousands of years humans have looked up at the nighttime sky with awe and wonder. As science developed, our geocentric well-grounded opinion of creations place in the humanity, changed drastically. In the deep 16th century-- Copernicus, Galileo and Kepler, three great astronomers, found that thither was vigor special ab protrude earth, and that it was not the essence of the universe. That it was just an undistinguished chunk of rock going well-nigh a less(prenominal) than ordinary star, one among billions of other stars. In elicit of its insignificance, the earth was extremely important for us, for it was our home, and the curiosity to know what was in the vicinity was strong. Questions like Are we alone in the universe or is there life elsewhere on most other planet? came to haunt mankind. To that end with child(p) cathode-ray oscilloscopes were constructed to consort out into the universe. However, the distances involved were so great, that looking through a telescope was not enough to answer those questions. A anticipate to the out planets had to be planned. In the late 1970s and the mid-eighties there was to occur a rare geometric battle array of the outermost planets, Jupiter, Saturn, Uranus and Neptune. These four planets would be in line with earth. Scientists and astronomers intentional a mission to take advantage of this occurrence. The gravitational power of each planet would pull the quadcraft and fling it like a slingshot towards the next planet without the using any fuel. In 1977 NASA launched two positioncrafts named Voyager 1 & 2. These two spacecrafts were designed to remain usable for 5 years and conduct close up studies of Jupiter and Saturn, Saturns rings, and the large moons of the two planets. After ceasing to be operational they would still placate to travel beyond the solar system into outer space eventually passing within 1.6 light years of a star. In the event of their getting intercepted by inte lligent beings from both(prenominal) other ! planet, each spacecraft is carrying on board a map of our galaxy showing the location...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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