Something tells us that if the lack of oxygen and the moltensurface of COROT-7b didn't put off Captain Kirk and company, constant showers of silicate rocks might.
In MESSENGER's view, the crater floor is seen to be filled with an intricate series of cracks, formed as the moltensurface resulting from the impact cooled and contracted.
信使号太空船在德加陨石坑表面观测到因熔融冷却收缩所产生的斑驳裂痕。
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The rest of the concept relied on gravity, which guaranteed that the surface of the molten metal was perfectly flat and horizontal.