A reminder to members of City Daily Photo that the theme for February 1st is Motors.
The Earth Gallery is the next space within the Museum of Nature. Three display cases at the entrance hold a sample of the three main types of rock. The first is sedimentary.
The second is metamorphic- rock that is changed by heat and pressure into a new kind of rock.
And the last is magmatic rock- rock that was magma and cools down into a solid shape.
Another thing by the entrance is very old, and has traveled further than anything else in the Museum. It's a piece of the Moon, brought back by the Apollo astronauts.
The process of the Earth formation- with the solar system and the universe before it- is explored here.
Part of that process has involved the presence of meteorites.
This is a piece of the Canyon Diablo meteorite, which fell to Arizona some fifty thousand years ago and created Meteor Crater.
This is a piece of the Buzzard Coulee meteorite, which fell over the Canadian west in November 2008.
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