our universe!. me! my house cambridge canada north america
TRANSCRIPT
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Our Universe!
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ME!
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My House
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Cambridge
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Canada
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North America
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Earth
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Solar SystemThe Sun
8 planets (pluto – dwarf planet)
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62 moonsthousands of asteroids, comets, meteorids, space rocks and bits of space dust;
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Milky Way Galaxy
• Huge city of stars;• Very large in size – travelling at the speed of
light (300 000 000 m/sec) it would take 100 000 years to travel across it;
• 100 000 million stars;• Gets its name from the lovely ribbon of light
that forms across the night sky;
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Local Group of Galaxies
• Group of galaxies that contains approximately 20 bright galaxies and 30 galaxies in total;
• Largest galaxies in the local group are spirals Andromeda and Milky way
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The Universe
• Billions of galaxies;• Galaxies are clumped together in clusters;• Farthest radio signals from a galaxy came from
12 billion light-years away;• Scientists believe the universe stretches out far
beyond what we can see;• Theory – parts of the universe may look very
different from ours and may even have different laws of nature;
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