Mars Geology

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Did Mars ever mirror Earth? I would like to start this discussion by defining the term “mirrored,” as being a like or characteristic of a mirror image. So for proposes of this discussion I will use this definition meaning it is in a resemblance and not a direct copy of one another. Now with all the formalities out of the way let’s move on. After spending a small portion of my life reading through papers about Mars Geology I have come to the conclusion that Mars does in fact have supporting evidence that it was once a mirrored planet of Earth. Or better said, Earth is a current mirror image of Mars in the past. In the paragraphs below I will support this claim with evidence from research findings, papers, and photographs. It will also be structured as so, interior, magnetic field, atmosphere, plate tectonics, volcanoes, and water.
Mars has an interior that is very similar to the interior of Earth. Mars has a core, mantle and crust just like Earth. They are both made of mostly iron and behave rather similarly. Mars has a much smaller interior than Earth but that makes sense when you take into account that Mars is almost half the size of Earth. Earth’s core has two parts: a solid inner core and a liquid outer core. Radioactive decay in the core generates the heat. This heat is lost from the core to the layers above. Convective currents in the liquid outer core along with the rotation of the Earth produce the Earth's magnetic field. This is where Earth and Mars start to differentiate from one another. The outer part of Mars core may be molten, but it's unlikely, because Mars has only a weak magnetic field (less than 0.01 percent of Earth's magnetic field). Although Mars doesn't have a strong magnetic field now, it might have had a p...

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...eing ideal to support liquid water and with the abundance of evidence I think it is only logical that Earth mirrors the past form of the Martian planet.
Based on both Mars and Earth having had very similar geology, I feel that these two planets did in fact mirror each other as defined earlier. They both share having had a magnetic field, a thick rich life supporting atmosphere, volcanoes, plate tectonics, liquid water and share similar interiors. The planets orbits are within the habitable zone and also conditions post Mars forming would have allowed it to have been an early Earth. I hope this discussion has been informative and an interesting read. Please comment below if you have any questions, comments, or concerns. My thanks also goes out to NASA and others for the webinars, slides, and information on these topics that allowed me to write in the first place.

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