Become familiar with the scale of the planets vs. their distances. • Get an overview of the solar system. Introduction It is easy to flip to the index of an astronomy textbook to discover that‚ say‚ the Sun lies 150 million kilometers away from Earth. It is far more difficult (if not impossible)‚ however‚ to picture this distance in the human mind. In this exercise‚ we will learn to access the often unpalatable distances encountered in astronomy by simply scaling the huge distances to more recognizable
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Scientists believe that earth was hit by an asteroid that was over six miles wide‚ or that earth was hit by a comet travelling 18 miles per second. They contemplate that when the asteroid hit earth’s surface‚ a great amount of debris and sulfur rose into the air. They believe that this blocked the suns light from hitting the earth. In result‚ all the dinosaurs and 70 percent of all animals and plants died (“What Killed the Dinosaurs"). Scientists have backed up their theory that earth was hit by an asteroid
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ice caps are melting‚ the Earth is getting warmer‚ which will leave us without winter. The earth is getting hotter and hotter and sooner or later we wouldn’t have winter. In the word book online info finder greenhouse effects‚ it states that greenhouse gases will leave us without winter. This is important because without winter the earth will just keep on getting warmer until it’s too hot to live in. Also from world book online greenhouse gases‚Sooner or later the earth will become
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Kepler 22-b | | Jessica Loyd | 11/1/2012 | For my professional organization I chose NASA because they are the U. S. government agency that is spearheading the Kepler Project that actually found the planet Kepler 22b that so closely resembles Earth. NASA was founded in 1958 and their headquarters are located in Washington D.C. NASA’s mission statement is “To reach for new heights and reveal the unknown so that what we do and learn will benefit all humankind.” (Wilson‚ 2011) The services provided
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Ecology 2:30-5:30 The Gaia Hypothesis A Goddess of the earth: "The Gaia hypothesis says that the temperature‚ oxidation state‚ acidity‚ and certain aspects of the rocks and waters are kept constant‚ and that this homeostasis is maintained by active feedback processes operated automatically and unconsciously by the biota." - James Lovelock‚ The Ages of Gaia It often seems obvious that life on earth lives at the mercy of powerful non-biological forces like
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of the universe and announce his discovery. Aristarchus‚ by observing the moon during a lunar eclipse‚ and estimating the angles between the Earth‚ Moon and Sun‚ as well as the size of the earth‚ was also one of the first astronomers to calculate the relative sizes of the Sun‚ Moon and Earth. Other astronomers before Aristarchus assumed that the Earth is a sphere and that it moves‚ but he was the first to explicitly formulate the heliocentric theory‚ the model which has the Sun in the centre
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been blamed for causing global warming. Global warming‚ however‚ can be caused by natural effects. One reason is that the earth is constantly going through periods of warming and cooling. Second the two most abundant greenhouse gases water vapor‚ and carbon dioxide both occur naturally. Third the earth is not the only planet that has had a change in temperature over the past few years‚ other planets have also had changing
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the majority of Americans have made the decision that global warming is in fact true. But what Americans are not exposed is the scientist that claim climate change is part of Earth ’s cycle‚ and that it right on schedule. The IPCC found that the amount of CO2 in the atmosphere is causing the rise in temperature on Earth. This‚ in effect‚ is causing polar ice caps to melt‚ flooding Ocean ’s with fresh water. The IPCC says that the flood of freshwater in the Ocean is causing weather patterns to
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Melting Permafrost’s Negative Contribution to Global Warming [pic] Global Warming is a problem that impacts the entire planet. The average temperature of our planet has risen about 0.5°C in the last 100 years. According to field biologist Wolter in 2008‚ the melting of permafrost in the colder regions of the world is mostly responsible for global warming; causing the world’s climate to be at risk. (Wolter‚ 2008) “Permafrost is any rock or soil that remains frozen constantly
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As seen from the Earth‚ a solar eclipse occurs when the Moon passes between the Sun and Earth‚ and the Moon fully or partially blocks the Sun. This can happen only at new moon‚ when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse‚ the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.If the Moon were in a circular orbit close enough to the Earth and in the same orbital plane‚ there would be total solar eclipses
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