The Universe and It's Phenomenons

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The universe is an unknown place. Most of it has not been explored. Some things are known, however. Scientists know a lot about things like the Big Bang and our Asteroid Belt. Some of the universe's natural phenomenons are yet to be discovered. This article will explain some of them and why they happen.
In the year 1929, Edwin Hubble made a revolutionary discovery. He learned that the universe is expanding. He saw that the galaxies were each moving away from us. Edwin knew that for one instance of time, almost 14 billion years ago, all of the mass of the universe was contained in a single spot. There had to have been a huge explosion that pushed all the matter away. This explosion is known as the Big Bang Theory. (www.science.nasa.gov)
NASA is now monitoring the expansion of the universe in spacecraft such as the Hubble Space Telescope and Spitzer Space Telescope. A goal of these telescopes is to decide if the universe will expand forever, or if it will go backwards and return to the original spot of the universe. (www.science.nasa.gov)
What did the universe look like when it was born? To certain theories, if we went back and watched the Big Bang, we would see "... a sea of neutrons, protons, electrons, anti-electrons (positrons), photons, and neutrons" (www.science.nasa.gov.) With time, the universe would cool and neutrons would either decay or combine with other things. The universe would look opaque. This is because the electrons would would have caused light to scatter. After more cooling, electrons would combine with nuclei and would form neutral atoms. Then, the universe would be transparent due to the electrons getting absorbed to make neutral atoms. (www.science.nasa.gov)
It has always been thoug...

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... :: Supernovas & Supernova Remnants. N.p.,
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"Coronal Mass Ejections." NASA's Cosmicopia. N.p., n.d. Web. 28 Apr. 2014. helios.gsfc.nasa.gov/cme.html>. "Mars Mobile." Mars Mobile. N.p., n.d. Web. 28 Apr. 2014. marsmobile.jpl.nasa.gov/programmissions/science/goal1/>. "Predicting Apophis' Earth Encounters in 2029 and 2036." Predicting Apophis' Earth
Encounters in 2029 and 2036. N.p., n.d. Web. 28 Apr. 2014. apophis/>. "The Big Bang - NASA Science." The Big Bang - NASA Science. N.p., n.d. Web. 28 Apr.
2014. .
"Asteroid Belt: Facts & Formation." Space.com. N.p., n.d. Web. 28 Apr. 2014.
www.space.com/16105-asteroid-belt.html>.

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