Welcome to SCIE 150: The Science of Everything Today: Astronomy Today • Stars: how are they born‚ how do they live‚ how do they die ▫ How do different stars vary in these paths • Planets: how are they born ▫ What are the planets of our solar system like • Constellations are A. Stars that are nearby each other in space B. Stars that appear to be near each other‚ but may be very far apart The Sun • Our Sun is A. B. C. D. An average star A very small star A
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Missions beyond Mars Design challenges for long missions Electrical power Launch Jupiter gravity assist Zipping by Jupiter Plans for Pluto Beyond Pluto Exploring the Kuiper Belt Current Status Introduction New Horizons is a NASA New Frontiers mission managed by the Johns Hopkins University Applied Physics Laboratory. Launched on January 19‚ 2006‚ the New Horizons spacecraft is due to pass Jupiter on February 28‚ 2007‚ en route to photographing and examining Pluto and other objects
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The Sun (Star of the Family) Planet word comes from Greek ‚which means „wandering star“. Sun is the heaviest among Solar System. If we take total mass of whole Solar System‚ the Sun would be 99.86% of the total. Sun is a ball of hot‚burning gases. Sun is the nearest star to the Earth. Sun is the source of all energy for life on Earth. On the Sun’s surface‚ there are dark patches known as sunspots. These are patches of gas that looks dark since they are cooler than their surroundings. The light
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The only planetary system that is known to man is our solar system. It is made up of nine planets. The nine major planets in our solar system are Mercury‚ Venus‚ Earth‚ Mars‚ Jupiter‚ Saturn‚ Uranus‚ Neptune and Pluto. There are also many other minor planets‚ which are also in our solar system‚ but they are unimportant compared to the nine major planets. Mercury‚ which is the planet that is closest to the sun‚ is the first and smallest of the inner planets. It is speculated that the heat from
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Below are ten facts about Saturn and a table of statistics. FACT ONE Saturn is the second largest planet in the Solar System after Jupiter. It is so big that Earth could fit into it 755 times. FACT TWO Saturn is a slightly smaller version of Jupiter‚ with similar‚ but less distinctive‚ surface patterns. Its only main difference is its amazing rings. FACT THREE Saturn’s rings may be particles of an old moon orbiting the planet‚ smashed apart in a collision about 50 million years ago. FACT FOUR
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Is Our Atmosphere Unique? The planet Jupiter has the biggest atmosphere in our solar system. Jupiter’s atmosphere is composed of 90% hydrogen and 9.9% helium and .1% other gases such as sulfur‚ methane‚ ammonia‚ and water vapor. It is able to hold its atmosphere in because of its massive gravitational pull that is around 2.5 times stronger than earth’s pull. To put that into perspective‚ if you weigh 100 pounds on earth you would weigh 250 pounds on Jupiter. The atmospheric layers are the
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Since Europa’s circle is marginally extended from roundabout‚ or circular‚ its separation from Jupiter fluctuates‚ making tides that extend and unwind its surface. The tides happen in light of the fact that Jupiter’s gravity is just marginally more grounded on the close side of the moon than on the far side‚ and the extent of this distinction changes
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explanation of why he is a key figure in achieving in the intellectual revolution of the Renaissance. For many people‚ Galileo is the champion ’ of modern science. Galileo ’s monumental discoveries were many. He was the first to observe the moons of Jupiter with his telescope. He calculated the law of free fall based on experimentation. He is known for defending and making popular the Copernican system‚ using the telescope to study outer space‚ and inventing the microscope. Galileo was the first real
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system formed about 4.6 billion years ago. 4. The four planets closest to the Sun - Mercury‚ Venus‚ Earth‚ and Mars - are called the terrestrial planets because they have solid‚ rocky surfaces. 5. Two of the outer planets beyond the orbit of Mars - Jupiter and Saturn - are known as gas giants; the more distant Uranus and Neptune are called ice giants. 6. Most of the known dwarf planets exist in an icy zone beyond Neptune called the Kuiper Belt‚ which is also the point of origin for many comets. 7
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SOLAR SYSTEM About 5 Billion years ago‚ y There was no Sun‚ no Earth& no Moon y Only cosmic dust and gasses drifted in the darkness of space SOLAR SYSTEM THEORY The solar system was formed by a slowly spinning cloud of gas and cosmic dust‚ gradually the cloud began to spin faster and faster this formed a large spinning whirl at the centre and smaller whirls surrounding it at various distances. SOLAR SYSTEM THEORY The huge and heavy centre became hot enough to start thermo nuclear
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