Rank 4 documents Luna 9 — the Lavochkin petal lander Georgi Babakin's team set down in Oceanus Procellarum on 3 February 1966, achieving the first soft landing on the Moon and the first photographs from the lunar surface. The 1,580 kg Molniya-M payload opened four protective petals like a flower after inflation cushioned terminal velocity — an iconic silhouette that became the visual shorthand for Soviet lunar engineering. Panoramic TV images transmitted to Earth proved the surface could support future landers and answered slope-and-regolith questions that crewed landing planners needed resolved. Constructivist linocut renders the four-petal deployed hero, double-line arch frame, and dense cream archive panel exactly as the master PNG dictates.