Why pummeled planets may be promising abodes for alien life

I read this report at sciencedaily.com too. https://www.sciencedaily.com/releases/2022/08/220818091303.htm

A very interesting model proposed using impacts now in astronomy. The report does recognize problems with life evolving on Earth during the early impact era. "If life existed back then, there were these intermittently big impacts that would sterilize the planet and boil off the oceans." I note, this may require a number of microorganism mass extinctions on Earth during the Precambrian with life evolving from non-living matter, again, again, and again via abiogenesis.

Ref paper - Widespread impact-generated porosity in early planetary crusts, https://www.nature.com/articles/s41467-022-32445-3, 16-August-2022.

"Abstract NASA’s Gravity Recovery and Interior Laboratory (GRAIL) spacecraft revealed the crust of the Moon is highly porous, with ~4% porosity at 20 km deep. The deep lying porosity discovered by GRAIL has been difficult to explain, with most current models only able to explain high porosity near the lunar surface (first few kilometers) or inside complex craters. Using hydrocode routines we simulated fracturing and generation of porosity by large impacts in lunar, martian, and Earth crust. Our simulations indicate impacts that produce 100–1000 km scale basins alone are capable of producing all observed porosity within the lunar crust. Simulations under the higher surface gravity of Mars and Earth suggest basin forming impacts can be a primary source of porosity and fracturing of ancient planetary crusts. Thus, we show that impacts could have supported widespread crustal fluid circulation, with important implications for subsurface habitable environments on early Earth and Mars."

My note. How life evolved from non-living matter during periods of impacts on the early Earth and how life continued to evolve during the Precambrian during impacts looks speculative and conjecture. Other reports posted now show how impact modeling must be accounted for in geology.

Using the giant impact and impact scenarios for the period 4.5 to 2.5 Gyr during Precambrian, Earth received a moon created via giant impact. Earth received continents, plate tectonics, and water via various impacts. Earth during this catastrophic bombardment era somehow managed to create life from non-living matter via abiogenesis and that life flourished during episodes of intense bombardment from 4.5 to 2.5 Gyr ago. Both geology and abiogenesis workers must include meteorite impact studies in their work. The catastrophism of early Earth is becoming clearer, and clearer as science models*evolve*.

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