Science is and has become a necessity to know just to keep up with the enormous advances of today and tomorrow. Basic things, like how the universe was suspected to have begun or who Ptolemy and Galileo were and what they did, are just things that need to be known to fully understand what is happening in the world around you. These things are what you need to know, if you are a scientist, to a food salesman. Ptolemy was a Greek man who became the man who established the future of astronomy. He was the third of the Alexandrian men, this group of scientists and mathematicians taught Alexander and his own generals. Living around 150 AD and being one of the Alexandrian men, he had access to knowledge that no one had at the time. From the information he had access to and the framework provided by Aristotle, Ptolemy was able to create a mathematical model of the universe. Some flaws and flaws in the current model made Ptolemy confused and angry. Using his current knowledge and applying Euclid's geometry to the model of the universe, he created the Ptolemaic system. In the Ptolemaic system, the model predicted that the planets revolved around the Earth, which is known to be different. Technically, in the model, the planets did not revolve around a centered Earth, but rather an off-center, known as eccentric, Earth. To solve the current problem of why planets speed up and slow down, Ptolemy insisted that planets do not travel at a fixed speed, but rather at a speed that changes at will. Then he raised the point that planets travel at a fixed speed, but only at the equant. The equant was a central point where, at that point, the planets would appear to be traveling at an equal and uniform speed. There was still one small problem, retrograde motion. Retrograde motion occurs when a celestial object moves in the opposite direction to most other celestial objects around it. To explain this, he proposed that the planets moved along a suborbit, in this case along the deferens. His model allowed us to agree with those of Plato and Aristotle, but to go into more detail about eccentric observations. Nicholas Copernicus was born on 19 February 1473 in Torun and was the founder of the heliocentric planetary theory. He insisted that there was a rotating Earth that... in the center of the chart... Point after Jupiter's Great Red Spot. It is larger than Earth. Winds in the storm blew at an average of 745 miles per hour. Jupiter's Great Red Spot has been going on for years, but the Great Dark Spot only lasted for a short period of time. Hubble images showed it had disappeared in 1994. In 1980, Saturn, Jupiter and Uranus were the only planets to have rings. For this reason they wondered if Neptune had a ring. Scientists carried out tests with the light of other stars that Neptune passed through in its orbit to find out if they had rings. They discovered that Neptune actually had rings. Neptune has 8 known moons, 7 of which are small. Six of these moons were discovered during the Voyager 2 mission in 1989. Their names are Naiad, Thalassa, Despina, Galatea, Larissa and Proteus. Triton was discovered by Lassell in 1846 and is Neptune's largest moon. Nereid was discovered by Kuiper in 1949. Scientific necessity is what keeps people up to date on almost everything. Even when you don't think directly about science, everything new that happens is related to science in some way. Science and astronomy are two driving forces in daily life updates.