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Exploring the Order of the Universe: From the Vastness of Galaxies to Our Own Planet

Dive into the fascinating study of astronomy, where we explore everything beyond Earth. This journey takes us from the immense scale of the Universe, filled with 100 billion galaxies each containing billions of stars, to the intimate details of our own solar system. Discover the hierarchy of cosmic structures, including superclusters, local groups, and galaxies, all the way down to planets and their natural satellites. Understand our place within the vast cosmos and learn how gravity binds it all together.

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Exploring the Order of the Universe: From the Vastness of Galaxies to Our Own Planet

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  1. Astronomy The study of everything beyond Earth!

  2. Order of the Universe • From Largest • To Smallest

  3. Universe • All of space and what is found in it. • Full of 100 billion galaxies with 100 billion stars each.

  4. Super Cluster • Cluster of clusters of galaxies, which include the local group. • Largest gravitational bound system so far. • Ours=Local Super Cluster

  5. Cluster • A small group of galaxies. They are held together by gravity and orbit each other. • Ours = Local Group • Milky Way Galaxy and its 34 closest neighbors. “Local” means the galaxies are within a region 3 million light years across.

  6. Galaxy • A vast collection of dust , gas, and stars held together by gravity. • Ours = Milky Way

  7. Sun’s Neighbors • The sun and its 20 closest neighboring stars. • One of Ours = Alpha Centauri

  8. Solar System • A group of satellites revolving around a star. • Ours = The sun and its collection of 8 planets.

  9. Star • A hot, bubbling, glowing ball of gas. It radiates a huge amount of energy in forms of light and heat. • Ours = The Sun

  10. Planet • An object that revolves around a star. • Ours = The Earth

  11. Natural Satellite • An object that revolves around a planet • Ours = The Moon

  12. What is the order?(Largest to Smallest) • U___________ • S___________ C__________ • C ___________ • G___________ • S___________ N___________ • S___________ S___________ • S___________ • P___________ • N___________ S___________

  13. Order of the Universe • Universe • Super Cluster • Local Group/Cluster • Galaxy • Sun’s Neighbors • Solar System • Star • Planet • Natural Satellite

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