Focus on Stars (M. C. Escher) and explain the abstract.
Stars is a wood engraving print created by the Dutch artist M. C. Escher in 1948, depicting two chameleons in a polyhedral cage floating through space.
The compound of three octahedra  used for the central cage in Stars had been studied before in mathematics, and Escher likely learned of it from the book Vielecke und Vielflache by Max Brückner. Escher used similar compound polyhedral forms in several other works, including Crystal (1947), Study for Stars (1948), Double Planetoid (1949), and Waterfall (1961).
The design for Stars was likely influenced by Escher's own interest in both geometry and astronomy, by a long history of using geometric forms to model the heavens, and by a drawing style used by Leonardo da Vinci. Commentators have interpreted the cage's compound shape as a reference to double and triple stars in astronomy, or to twinned crystals in crystallography. The image contrasts the celestial order of its polyhedral shapes with the more chaotic forms of biology.
Prints of Stars belong to the permanent collections of major museums including the Rijksmuseum, the National Gallery of Art, and the National Gallery of Canada.
astronomy National Gallery of Art biology compound of three octahedra print Waterfall Max Brückner crystallography polyhedra wood engraving Rijksmuseum Leonardo da Vinci chameleon polyhedral Double Planetoid National Gallery of Canada M. C. Escher