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The moon
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  • 1. THE MOON
  • 2. All parts of the Moon are lit in turn by the Sun. As it rotates round the Earth we see different fractions of the sunlit half, or hemisphere, of the Moon. These are known as the phases of the Moon, or lunar phases. The Moon changes from a thin crescent to a full moon and back again to a crescent in one month (actually 29 days, which is a lunar month).
  • 3. If you look at the Moon when it is nearly full you can see the dark areas which are known as the seas. (They are all given Latin names, such as Mare Serenitatis – the Sea of Serenity, or Mare Frigoris – the Sea of Cold).These are not really seas but are huge expanses of smooth dark lava.
  • 4. The first man to make proper maps of the moon was Galileo. Galileo did not invent the telescope but by 1609 he had developed a telescope that could magnify objects to 20 times, and with this telescope he began his careful study of the Moon’s surface.
  • 5. He was the first person to walk on the Moon (21st July 1969) Apollo 11 was the spaceflight that landed t he first humans on the Moon.
  • 6. A photograph of the Earth taken from the surface of the Moon. The Moon is much smaller than the Earth. It has got no air, water or life.