Week 3 Notes
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This 3 page Class Notes was uploaded by Jensine Bonner on Sunday February 21, 2016. The Class Notes belongs to Geog 101 at Towson University taught by Henry L. Shupple in Summer 2015. Since its upload, it has received 19 views. For similar materials see Physical Geography in Geography at Towson University.
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Date Created: 02/21/16
Geography 101 Notes taken, interpreted, and formatted by: Jensine Bonner Week 3: The Universe 2/15/16 No School (Snow Day) 2/17/16 Cosmology is… The study of the universe Astronomy is… The study of space Speed of Light - Travels 186,000 miles per second The Light Year - Can be described as the distance that light will travel in a year’s time which is 6,000,000,000,000 miles *This is a measure of distance, and not a measure of time* There are many theories which suggest ideas to how the world came to be. One of the most famous, and most recognized is The Big Bang Theory - Said to have occurred between 13.6-14.0 billion years ago How Big is the Universe? - The distance is measured by comparing the edge of the known (visible) universe, and it’s estimated to be 14 billion light years away Leaving Earth - One tool that scientists use to investigate space is, the Hubble Space Telescope which provides the scientists with a clear image of space. - The Hubble is a reflective telescope, and it orbits above Earth’s atmosphere A Galaxy is - An organized group of stars Andromeda Galaxy - Is said to be 2 million light years away, and it contains 200+ billion stars Deep Field Project - For this project, kept open for 10 days to capture light, and the Hubble Space Telescope captured a photo, and everything in the photo were galaxies, and it revealed over 3,000 galaxies Black Hole - Thought to exist at the center of the galaxy, but it’s when stars converge, it’s not an actual hole. - When stars converge their light is lost Nebula - Is a collection of dust and gas, and from this dust and gas, new stars and even planets are born 2/19/16 Formation of Planets From the nebula Planets Terrestrial Planets - Are generally small in size, dense, of rocky composition, and contain few moons - Mercury, Venus, Earth, and Mars Jovian Planets - Are generally large in size, gaseous, not dense, contain many moons, and have ring systems - Jupiter, Saturn, Uranus, and Neptune The Solar System - Mercury- Closest to the sun therefore, no life can exist on it - Venus- Shrouded in thick dense clouds, and has a heightened greenhouse effect-> 900 degrees on this planet - Mars- Life could possibly exist on this planet, since it along with Earth are in a comfortable zone - Jupiter-It contains the famous red spot which is a gigantic storm and it has a very dense atmosphere - Saturn- Famous for its rings - Uranus & Neptune- Known for being blue planets - Pluto-Icy & small (dwarf planet) Dwarf Planet - Pluto is one of the dwarf planets, and it has (5) moons. - There are suspected to be many more dwarf planets out there End of Week 3 notes. I hope that they were helpful to you. Notes will be uploaded weekly, so be sure to come back again! Up Next: Week 4 Notes - Jensine
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