Will roughly crash landing scrap on the moon cause nearby cave systems to collapse, and where are the caves to shelter from meteorite bursts in? "Removing thes

Will roughly crash landing scrap on the moon cause nearby cave systems to collapse, and where are the caves to shelter from meteorite bursts in? "Removing these 50 objects from orbit would cut danger from space junk in half" https://news.ycombinator.com/item?id=45469259 https://news.ycombinator.com/item?id=45469259 : > When will it be safe and cost-efficient to - instead of deorbiting toward Earth's atmosphere - Capture and Haul and Rendezvous and gently Land orbital scrap on non-earth locations like the Moon or Mars or a thrust-retrofitted asteroid for later processing? Is there any amount of time in a higher altitude orbit - or an Earth-Moon lunar cycler orbit - that would sanitize the outer surface of a spacecraft like ISS? Or will all such attempts cause adaptation? Would ISS be more useful as an oxygen tank in earth-moon orbit than in Earth's atmosphere and ocean? But for the moon, From https://news.ycombinator.com/item?id=45237426 https://news.ycombinator.com/item?id=45237426 : > What about solar sintering + induction heating of lunar regolith? > Basalt, Glass, > Molten oxide electrolysis of regolith would yield Oxygen, Silicon, Iron, Aluminum, and Titanium for 3d printing and for solar panels and semiconductors. > Is there a sensor for inside of a rover or a vehicle wheel to sample the regolith falling within the wheel before it pours out to self clear? Does this model include a regolith map or a soil map? Where is there Carbon on the moon? --- "Lunar soil machine developed to build bricks using sunlight" https://news.ycombinator.com/item?id=45086238 https://news.ycombinator.com/item?id=45086238 --- From https://news.ycombinator.com/item?id=42543663 https://news.ycombinator.com/item?id=42543663 : > I wonder if the ISS could instead be scrapped to the moon. [...] > Because of my love for old kitchens on the Moon. --- "Researchers simulated 30 million routes to the Moon and found a hidden detour through L1 that saves fuel and keeps spacecraft talking to Earth the whole way" https://spacedaily.com/sd-researchers-simulated-30-million-routes-to-the-moon-and-found-a-hidden-detour-through-l1-that-saves-fuel-and-keeps-spacecraft-talking-to-earth-the-whole-way/ https://spacedaily.com/sd-researchers-simulated-30-million-r... : > Most of a deep-space journey is coasting along gravitational contours that physicists collectively call the Interplanetary Transport Network — a web of low-energy pathways that connect orbits around planets, moons and Lagrange points - "Earth–Moon transfer via the L1 Lagrangian point using the theory of functional connections" (2026) https://link.springer.com/article/10.1007/s42064-025-0297-x https://link.springer.com/article/10.1007/s42064-025-0297-x : > The results show a reduced fuel consumption of at least 58.80 m/s as compared to the literature. This difference can be useful for mission designers, while the efficiency of the technique can potentially extend the results to other types of transfers in space. Where are the L1 and L2 Lagrangian points when you consider the mass of the moon in addition to the earth and the sun? Lyapunov exponents in SQG/DDF too. This month I've been learning about the differences between SQG and DDF Dilatant Dark Fluid (Fedi) in regards to n-body gravity research.