By Enrico Miotto
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Extra resources for The Universe - Origins and Evolution
Sample text
This was the beginning of the first stars in the first galaxies. One of the many stars that formed in this way our sun, which seems so massive to us, but is only a medium-sized star in the Milky Way Galaxy. is Although our solar system is only about 5 billion years old, our galaxy is very old. The oldest stars of the Milky Way form a "halo" around the structure. Within this halo are clusters of stars that spiral-shaped arms that extend from the of the galaxy. Like of the is Milky Way many is make up main mass other galaxies, the center densely packed with stars and very bright.
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To find out more about the nature of the universe, scientists are attempting to map it. They have already measured distances to millions of galaxies, but they must measure many more to complete the map. One goal of their research is to discover how galaxies formed patterns in space. ' \ out the universe. But scientists have found strange patterns. ) We The universe today laxies see stars and other because they either give objects in space off or reflect Hght. In general, this light travels in a straight path to Earth and all other parts of the universe.
The Universe - Origins and Evolution by Enrico Miotto
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