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Our Moon

Our Moon. Currently: 1 st quarter, “six days old”. Optical Illusion: on the horizon. Angular size varies. Because …. … variation in distance. Galileo’s sketch. Revealed dark “maria” areas Craters (which are now known to be impacts). Better seen in photos. This taken in 1865!.

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Our Moon

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  1. Our Moon Currently: 1st quarter, “six days old”

  2. Optical Illusion: on the horizon

  3. Angular size varies Because ….

  4. … variation in distance

  5. Galileo’s sketch • Revealed dark “maria” areas • Craters (which are now known to be impacts)

  6. Better seen in photos • This taken in 1865!

  7. Men on the Moon Buzz Aldrin—2nd to step on the Moon

  8. We drove on the Moon

  9. Brought back rocks • Maria rocks are basalt • Rocks are anhydrous—no water

  10. Maria Formation Theory

  11. Early theories of Moon’s origin

  12. Current Theory

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