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Rediscovering the Universe

By Johnson, Les

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Book Id: WPLBN0003548809
Format Type: PDF eBook :
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Reproduction Date: 2014

Title: Rediscovering the Universe  
Author: Johnson, Les
Language: English
Subject: Nonfiction, Astronomy, Science
Collections: Science Fiction Collection, Baen Library Collection
Publication Date:
Publisher: Baen Publishing Enterprises


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Johnson, L. (2012). Rediscovering the Universe. Retrieved from

Description: Les Johnson takes history back to when the Universe was first created about 14 billion years ago. He explains the theories that scientists have developed about our currently expanding universe.

Summary: The Universe was created about 14 billion years ago which began with the Big Bang. Scientists have predicted that the Universe is constantly expanding, each galaxy moving at the same rate away from each other. Scientists have discovered and categorized the galaxies discovered into three types of galaxies. This article also touches into the explainations of Gamma Ray Bursts and how scientists first discovered these large blasts of light. They studied it for years and concluded that there is one GRB per day and each flash of light is brighter than the light emitted from the sun. It's a flash of light similar to the flash you see when nuclear bombs blow up. Our Universe if composed of many types of matter, objects and energy and as more time and studies take place, the more scientists discover each day.

Excerpt: Since the stars in a galaxy, like our Milky Way Galaxy, orbit the massive black hole at their center in a manner similar to the way the planets in our solar system orbit the Sun, one would expect that the stars nearer the center of the galaxy to orbit faster than those near the edge. Unexpectedly, when astronomers measured their orbital velocities, they weren't moving as expected. In fact, measurements indicate that all of these stars are moving at about the same angular speed.

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