APOD 2.8

This picture, "A Spherule from the Earth's Moon" is one that is rather weird. It is abnormal due to the fact that it is not an astronomy picture that I would normally select to blog about. The picture itself is very dull and not interesting at all, just picturing a plain grey, pockmarked Moon. My true interest in the picture comes from what I DIDN'T know about the picture when I first viewed it. I had no clue what a 'spherule' might be, and why there would be one on the Moon. I now know that this is actually just a fancy word for 'sphere'. The sphere on the Moon that is of interes, is one made of glass that was formed when meteorite struck the Moon's surface. According to the links that I followed within the article, astronomers can actually use these spheres for a very valuable purpose. They can date and measure the age of craters that are present on the Moon.