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The Universe Began
Between 13 and 14 billion years ago, the universe began. -
The First Billion Years
During the first billion years, the expanding universe clumped together to form enormous clouds. -
The Sun
The sun began forming nearly 5 billion years ago -
After A few Billion Years
After a few billion years, the material cooled and condensed into the first stars and galaxies. -
Our Solar System
About 5 billion years ago, our solar system began forming in a galaxy that is now called the Milky Way glaxay.
