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1Space – The Final Frontier
2Early astronomers Astronomer - Astronomers use the principles of physics and mathematics to learn about the fundamental nature of the universe, including the sun, moon, planets, stars, ... Nicholas Copernicus – (1473 – 1543) the first astronomer to teach that the sun (not the Earth) was the center of the solar system. Galileo Galilei – built the first telescope in 1609 and proved Copernicus correct.
3What is out there? Ever since mankind has looked up at the moon and stars, we have wandered about life in the universe.
4How big is the universe? Billions of stars – planets – galaxies
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