金星（Venus）上的这些多边形裂缝曾位于海底吗？

科学家长期以来一直对金星表面巨大的多边形裂缝感到困惑。一项最新研究提出，这些多边形结构可能是由远古海底的泥浆干涸所形成的。

Sprawling, huge cracks on Venus have long puzzled scientists. A new study suggests the polygon shapes formed from drying mud on an ancient seafloor. The post Were these polygonal cracks on Venus once on a seafloor? first appeared on EarthSky .