6th May 2011 Notes: Craters on Earth and the Moon

In the left hand picture below, we enhanced the closeup image of one of the many craters you see on the lunar surface.  You can see some of the impact debris on the left hand edge of the crater.

What was of interest was the almost perfect straight line above the lunar crater heading towards the top right hand corner of the image.

The right hand image shown below shows an equally large crater found right here on Earth. This crater marks an impact in the Arizona desert somewhere around 50,000 years.

When you compare both craters below, you can see the lunar crater on the left is perfectly round as the lack of atmosphere on the Moon means that there is nothing to cause erosion of the crater shape. On the other hand, the craters on Earth like the one shown below right are eroded by the influence of the Earth’s atmosphere over time.  Despite the erosion, this crater in the Arizona desert is one of the best preserved craters on the planet.

The image below was processed by sydneystargazers.com

Earth and Moon Craters (Click to Enlarge)

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~ by sydneystargazers on May 6, 2011.

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