Figure 4 Prompt (Thermal Melting Methods & Alternative Base): "A multi-panel engineering drawing. Panel A shows a spacecraft landing vertically with a downward-facing rocket engine (140) blasting an exhaust jet to melt a sub-ice cavity zone (142). Beside it, a heavy sealed container (144) is melting its way vertically down through a thick layer of ice. Panel B shows a separate setup where a vertical rocket hull (10) sits in shallow water and is rigidly fixed directly to a flat rigid anchor foundation (152) on the bottom substrate. Labeled with clean numbers 10, 140, 142, 144, and 152." Voir plus