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Earth's rotation is an important factor in contributing to the generation of the field, and helping to stabilise the form of it. The rotation influences the flow of compositionally convecting material deep within the outer core, forming cylindrical rolls that align along the rotation axis (a Coriolis effect). While Earth's field polarity may reverse ...


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Are there any other measurements that have contributed to current understanding of Earth's core besides these two? The answer is of course "yes". Other answers have already alluded to laboratory experiments that attempt to re-create conditions similar to those well inside the Earth. I'll provide two others; there are many more. One is radio ...


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As Jean-Marie Prival comments, Ceres doesn't have a rocky crust. It has an icy crust in which rocky matter is embedded from asteroid impacts. I'd rather see this comment turned into an answer than reinvent the wheel on that dwarf planet. In case they "die", the relevant comments are quoted below the main body of the answer.. Instead, here I ...


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The only answer I can come up with is related to isostasy. 1 - Poles melt, so there's more water in the oceans. 2 - As there's more water in the oceans, there's more weight on the oceanic crusts, so they bend, making deeper some parts of the oceans. 3 - The parts of the ocean that are deeper are in the centre of the oceans, far from continental crust. It ...


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The Martian nightglow comes from molecules in the atmosphere that react with solar radiation, carry it over to the night side, and give off the energy they gained as ultraviolet light as they free-form stable compounds. From https://www.nasa.gov/press-release/goddard/2020/mars-nightglow: The diagram explains the cause of Mars’ glowing nightside atmosphere. ...


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While Venus is not tidally locked to the sun, it rotates slow enough that you might as well consider it tidally locked. However you have to disentangle the slow rotation from the superrotating atmospheric motion. The fast atmospheric rotation (as reaction of the atmospheric gases to the intense solar radiation) redistributes heat very efficiently in the ...


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I actually just found an article that explains such a calculation in detail, using a matrix propagator method: Padovan et al. 2018 This is a calculation for gas giants or bodies in hydrostatic equilibrium. The calculation of the Love numbers for terrestrial planets that have viscoelastic behaviour requires the rheology (which includes models for the rigidity)...


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This all comes down to a single issue. Define plate tectonics. There are several ways it can be defined which is why estimates of when it started vary by more than half the age of the planet. At the broadest definition plate tectonics predates liquid water by a decent margin, by the narrowest it may not even predate multicellular life. Like most process ...


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This study seems to suggest that global warming will change oceanic circulation and transfer a net increase of mass to the poles, closer to the axis of rotation, therefore speeding up the spin. article: https://www.newscientist.com/article/dn11555-global-warming-will-make-earth-spin-faster/ study: https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/...


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I'm digging up this question, because since it was asked there were many publications about New Horizons findings, proposing at least two other processes (not mentioned in the previous answer) for resurfacing Pluto. Sublimation. Moore et al. (2017) showed how sublimation of nitrogen ice could lead to the formation of the pit fields observed in some icy ...


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No The Earth is not a living thing and therefore not an organism. Life is defined by several things: Growth Reproduction DNA/RNA Oxygen Exchange (Except for some organisms) It is valid to say that earth is giant habitat for life. Earth can be described as a huge magnet and a hot rock orbiting a giant sun that will one day wipe out life on Earth. All human ...


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Whether it's an organism, it's alive, etc. are just labels commonly used when this issue is discussed among biologists or Earth scientists. However, a broader perspective leads to the notion of an emergent system. "Emergence occurs when an entity is observed to have properties its parts do not have on their own, properties or behaviors which emerge only ...


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