Why does the moon change so much in the night sky? It’s big and round one week and the next week, it’s barely there! Learn about the Phases of the Moon!
Next time there is a big moon, take a pair of binoculars and look up at it. See all those craters? The Earth once had as many craters as the moon! What happened to Earth’s craters? Well, Earth recycles her land: weather and time rearranged the landscape and the craters mostly were worn away. But the Moon? No weather, very little atmosphere (air), and no water. So the craters on the moon will be there forever.
This close-up of the full Moon features two prominent ray craters, Copernicus (upper left) and Tycho (lower right).
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