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(Astronomy continued) Our sun is a medium-sized star whose gravity controls all objects within the solar system. Our solar system is located on an arm of our spiral The milky way is one of billions of galaxies that is found in our universe. Astronomers tell us that the known as the milky way. started from an explosion, estimated to have occurred over ten billion years ago, called the big bang. Astronomers tell us that the universe is still expanding outward from that explosion. Evidence for the big bang theory includes: left over measurable background cosmic radiation, and a shift of spectral lines known as the shift. Light from distant galaxies can be spread out into lines. 11 C have shifted towards the red end of

(Astronomy continued) Our sun is a medium-sized star whose gravity controls all objects within the solar system. Our solar system is located on an arm of our spiral The milky way is one of billions of galaxies that is found in our universe. Astronomers tell us that the known as the milky way. started from an explosion, estimated to have occurred over ten billion years ago, called the big bang. Astronomers tell us that the universe is still expanding outward from that explosion. Evidence for the big bang theory includes: left over measurable background cosmic radiation, and a shift of spectral lines known as the shift. Light from distant galaxies can be spread out into lines. 11 C have shifted towards the red end of

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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(Astronomy continued) Our sun is a medium-sized star whose gravity controls all objects within the solar system. Our solar system is located on an arm of our spiral known as the milky way. The milky way is one of billions of galaxies that is found in our universe. Astronomers tell us that the started from an explosion, estimated to have occurred over tên billion years ago, called the big bang. Astronomers tell us that the universe is still expanding outward from that explosion. Evidence for the big bang theory includes: left over measurable background cosmic radiation, and a shift of spectral lines known as the shift. Light from distant galaxies can be spread out into lines. Studying these spectral lines, they were all found to have shifted towards the red end of the visible light spectrum. This occurs if a radiating object is moving the observer at high speed. This proof has led astronomers to the conclusion that our universe is still expanding. Because of gravity, material in space, consisting of gas, dust, molecules, and atoms, form enormous clouds called contracts, the temperature increases and the cloud rotates faster. As the cloud gets smaller, the center part heats up to a temperature so high that nuclear begins. In this process lighter elements, especially heavier elements, especially of energy and a star is born. The from As the material are combined to form This nuclear reaction releases great amounts of a star indicates its temperature; stars are the coolest and stars are the hottest, In the luminosity and temperature of stars chart, found in the reference tables, stars are placed according to temperature and brightness. The main where most stars are clustered. Blue is an area on this chart are the most massive. Red are among the coolest and small stars. Terms: spectral, red, galaxy, away, universe, nebulae, supergiants, hydrogen, color, blue, dwarfs, red, fusion, sequence, helium
Transcribed Image Text:(Astronomy continued) Our sun is a medium-sized star whose gravity controls all objects within the solar system. Our solar system is located on an arm of our spiral known as the milky way. The milky way is one of billions of galaxies that is found in our universe. Astronomers tell us that the started from an explosion, estimated to have occurred over tên billion years ago, called the big bang. Astronomers tell us that the universe is still expanding outward from that explosion. Evidence for the big bang theory includes: left over measurable background cosmic radiation, and a shift of spectral lines known as the shift. Light from distant galaxies can be spread out into lines. Studying these spectral lines, they were all found to have shifted towards the red end of the visible light spectrum. This occurs if a radiating object is moving the observer at high speed. This proof has led astronomers to the conclusion that our universe is still expanding. Because of gravity, material in space, consisting of gas, dust, molecules, and atoms, form enormous clouds called contracts, the temperature increases and the cloud rotates faster. As the cloud gets smaller, the center part heats up to a temperature so high that nuclear begins. In this process lighter elements, especially heavier elements, especially of energy and a star is born. The from As the material are combined to form This nuclear reaction releases great amounts of a star indicates its temperature; stars are the coolest and stars are the hottest, In the luminosity and temperature of stars chart, found in the reference tables, stars are placed according to temperature and brightness. The main where most stars are clustered. Blue is an area on this chart are the most massive. Red are among the coolest and small stars. Terms: spectral, red, galaxy, away, universe, nebulae, supergiants, hydrogen, color, blue, dwarfs, red, fusion, sequence, helium
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