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Photographer's Note

Picture of our friend the Moon (almost full).

A technical try ( info from the photographer): picture taken using a Nikkor 600mm + x2 TC-301 + using D2X @ x2 = 4800 mm

Some technical info (from the geologist)

The Origin of the Moon: the Giant Impact Theory
The moon came from a collision between the Earth and another planet (called Theia) about 4.5 billion years ago, about 50 million years after Earth first formed. The planet that ran into the earth was about the size of Mars.

What does the Moon do for us today?
It stabilizes the Earth's axis which means climate on Earth has been much steadier than the climate on Mars. We have had ice ages of course, but we would have had much more severe ice ages than if we had not had the Moon. It's possible it would have impacted the development of life.

Without the Moon, there would have been no life on Earth.
Four billion years ago, when life began, the Moon orbited much closer to us than it does now, causing massive tides to ebb and flow every few hours. These tides caused dramatic fluctuations in salinity around coastlines which could have driven the evolution of early DNA-like biomolecules.

PS: I know that the Moon is not a place on Earth (TE private joke).

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