Formation of Ryugu's parent planetesimal beyond the CO 2 snow line from small pebbles: insights from thermal evolution modeling
The episode discusses a paper modeling Ryugu's parent planetesimal formation beyond the CO2 snow line using small pebbles. Researchers used thermal evolution models and mineral dating, like dolomite, to show that water circulation through a porous pebble-pile structure was necessary to maintain liquid water and explain the asteroid's unique characteristics.