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Today I went to the Museum of Natural History. I learned about the Earth's birth, the solar system and dinosaurs. I learned that the universe was born about 15 billion years ago, during the Big Bang. About 4.6 billion years ago, the planet we live on, Earth, was formed. About the solar system I learned that outer space has numerous stars. There are *8* planets starting with the planet closest to the sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. This thing I learned about solar system. And last, about dinosaurs is Troodon, I learned Troodons weighed about 22.7 tonnes, and the weight of their brain was between 37~45 kg. I liked dinosaurs the most from what I learned today. And I am interested in Troodons the most.  |