Scientists Just Solved a 40-Year-Old Mystery with a Weird-Looking Pyramid
Great Discoveries Channel   2 days ago
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Scientists Just Solved a 40-Year-Old Mystery with a Weird-Looking Pyramid  The Daily GalaxyNew geometry discovery could stop lunar landers from falling over  Phys.orgMeet The Bille, A Self-Righting Tetrahedron That Nobody Was Sure Could...