Questions tagged [geology]
Questions related to processes and principles related to the interior and the solid surface of a planetary body.
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Is an earth-sized moon orbiting a super-earth feasible?
Is an earth-sized moon orbiting a super-earth feasible?
Or would tidal forces say 'no thanks'?
I'm making a system for the Kerbal Space Program Kopernicus mod and am trying to make it as realistic as ...
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What are the effects of mass concentration along a planet's axis of rotation?
Reading about geological history of Mars and coming across the Martian dichotomy, which is about having the two hemispheres' geography differ in elevation by 1 to 3 km.
Does this mean that Mars' ...
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Why don't scientists believe Earth's surface water came up from the mantle?
I read, periodically, that there is more water trapped in the mantle than there is in the oceans - possibly a lot more.
If so, why don't any geologists believe that Earth's surface and near-surface ...
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What discoveries were made thanks to Pioneer orbiter data?
Based on the Wikipedia page Pioneer Venus Orbiter (also known as Pioneer Venus 1, Pioneer 12, 1978-051A) there were quite a few scientific instruments on board. But what scientific results were ...
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Geological/tectonic/thermal/etc. implications of Rayleigh numbers ≥ 100,000,000
What's a Rayleigh number? Well, it doesn't have anything to do with Rayleigh scattering. Here's a Wikipedia page on this concept, but I believe Elvira Mulyukova's and David Bercovici's Mantle ...
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What value of density would a planet need to be classified as a mini-Neptune?
EDIT: well, now I have more
For reference:
A terrestrial planet is a planet that is made out of silicates and metals.
A Mini-Neptune is, as far as I know, the smallest type of giant planet (arguably,...
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Are stagnant-lid Earth analogues guaranteed to become Venus-like?
In our current understanding of Venus, two things are generally accepted:
Venus reached its thermal tipping point at least 700 Ma. As the Sun's luminosity gradually increased with age, its average ...
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What is the elevation of this mesa in Noctis Labyrinthus?
I'm interested in the elevation of this mesa in Noctis Labyrinthus. It's located at -6.3, 265.
This image is from
https://www.geo.fu-berlin.de/en/geol/fachrichtungen/planet/press/archiv2016/...
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Is there evidence for galactic "seasons"?
The Solar Year has huge effects on our climate, and the signs of passing seasons are physically evident on Earth. I recently learned about the Galactic Year. To my understanding, our sun orbits the ...
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In which Indian Institutions can I find Planetary Scientists or Planetary Geologists? [closed]
Which institutions in India provide labs and facilities for research in the field of Planetary Sciences/Planetary Geology?
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What is the temperature 55 km beneath the surface of Mars?
What is the temperature 55 km (34.18 miles) beneath the surface of Mars? The reason I ask is that I want to know if it might be habitable for a possible future colony if they could dig that deep (...
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How did the mountain range form in Galle crater?
In the Galle crater, there is a mountain range that is shaped like a circle segment that makes it look like a smiley face. How did this mountain range form? Is it a central ring that formed with the ...
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Are there any mountains/volcanoes steeper than Tharsis Tholus?
Although Olympus Mons is the tallest mountain in the solar system, its slope is so gradual that the peak cannot be seen from the plain; it is hidden by the planet's curvature (flank slope = 5.2°). The ...
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Was the young Sun cooler or hotter than it is today?
Generally, astrophysicists say that the young Sun was only about 70% as warm as today, which leads to the alleged 'Faint young Sun paradox' about how a young Earth could have been as warm as it (again,...
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Why do Venus, Earth, and Mars have tall volcanoes, but the Moon, Mercury, and Io don't?
There are numerous examples of multi-kilometre tall mountains such as Maat mons on Venus, Mauna Kea on Earth, the Tharsis volcanoes on Mars. We don't find similar such examples of volcanic edifices ...
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