Koo Jeong-a turns Leeum inside out

Polished steel sits near bronzes cast to look like meteorites, and a monumental metal colossus shares a gallery with a tower of pencil leads that seem as if they might scatter at a touch. "Koo Jeong A: Ousssmos," the Paris-based artist's largest solo exhibition in Korea, revels in collisions like these — the futuristic scattered alongside the primitive, the industrial among the ancient — until a sense of estrangement takes hold, hard to pin down but oddly absorbing. Opening Saturday at Leeum Mus