Gas-depleted planet formation occurred in the four-planet system around the red dwarf LHS 1903. - Wilson TG; Simpson AM; Collier Cameron A; Cloutier R; Adibekyan V; John AA; Alibert Y; Stalport M; Egger JA; Bonfanti A; Billot N; Guterman P; et al. (Science (New York, N.Y.), 2026)