This first video is called Origins of the Moon. Don’t worry about the big words and the advanced math – this is just showing the same idea as the video from the Museum of Natural History. When Earth was first born, it had no Moon. Then, another planet too close by hit the Earth. The Moon was formed from that explosion. There was nothing living on Earth at the time. We’ve also talked a lot in class about how this could not happen again today because there are no planets that come very close to us.
Why does the Moon look like it changes? This shows some nice footage of the Earth, Moon and Sun together. It makes it easy to see how the Sun’s light makes one side of the Moon look bright. But, sometimes the bright side is facing away from us or only facing towards us a little bit. So, the Moon sometimes looks dark or has a crescent shape.
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