Timeline for What is the maximum size for a solid celestial body such that it still can be tunneled down to the core?
Current License: CC BY-SA 4.0
18 events
| when toggle format | what | by | license | comment | |
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| Apr 17, 2023 at 19:35 | vote | accept | ksousa | ||
| Apr 17, 2023 at 18:39 | answer | added | David Bailey | timeline score: 7 | |
| S Aug 1, 2022 at 20:04 | history | bounty ended | CommunityBot | ||
| S Aug 1, 2022 at 20:04 | history | notice removed | CommunityBot | ||
| Jul 25, 2022 at 4:01 | comment | added | Fred | @uhoh: re: How deep could a lunar mine go, I don't dispute the answers there given for the theoretical/technical. depths, based on geothermal or geomechanical criteria. In terms of engineering limitations the depths will be much less. Part of the problem will be what equipment would be available, energy availability, access method. Not having a atmosphere on the Moon presents its own problems. If the question were to asked about Mars, its weak CO2 presents other issues compared to Earth's atmosphere. This could easily be the subject of a doctoral thesis - "how long is a piece of string?". | |
| Jul 25, 2022 at 3:27 | comment | added | eshaya | Are we talking about a solar system object or an exoplanet around an 11 billion year old system? The composition and temperature profile would need to be specified. How long has it been cooling? Planets have different compositions, different degrees of differentiation, and so different structural strengths. Probably you need to be discussing an asteroid sized object, not a planet. | |
| Jul 24, 2022 at 21:51 | comment | added | ProfRob | This is an engineering problem. | |
| Jul 24, 2022 at 21:00 | history | tweeted | twitter.com/StackAstronomy/status/1551311278098075648 | ||
| S Jul 24, 2022 at 18:46 | history | bounty started | ksousa | ||
| S Jul 24, 2022 at 18:46 | history | notice added | ksousa | Draw attention | |
| Jul 24, 2022 at 18:45 | history | edited | ksousa | CC BY-SA 4.0 |
Trying to make text more clear.
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| Jul 23, 2022 at 10:03 | comment | added | Fred |
@JamesK: this is definitely a planetary sciences question & despite its name SE Earth Science does accept some planetary science questions, but as you state it can can also fit in with SE Space Exploration. SE Earth Science has a planetary-sciences with 133 questions associated with it. It's sometimes a case of trying one's luck on one & if it get knocked back on one site, maybe try the other.
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| Jul 22, 2022 at 10:44 | comment | added | uhoh | Different but related: How deep could a lunar mine go? | |
| Jul 22, 2022 at 9:09 | comment | added | James K | I don't think Earth Science would accept this, as its not about the Earth. It is on topic at Space Exploration but it could also fit here. It might well go un-answered, simply because "nobody knows". | |
| Jul 22, 2022 at 1:33 | comment | added | Nilay Ghosh | Please check the sister site Earth science.SE or SpaceEx.SE | |
| Jul 22, 2022 at 0:28 | comment | added | Fred | With reference to your question, if the celestial body has a hot core or even a hot mantle, no tunnel will be able to get anywhere near the core because of high temperature. If the body has a cold core & mantle then the limiting factor with be geomechanical stresses. Overburden pressure may not be the only geomechanical stresses; at depth sometimes the horizontal stresses can be higher than the vertical stresses. The other factor will be the cost of developing the tunnels. | |
| Jul 22, 2022 at 0:19 | comment | added | Fred | This would probably be more of an earth science question than an astronomy one. | |
| Jul 21, 2022 at 22:57 | history | asked | ksousa | CC BY-SA 4.0 |