Discovery Collection Metadata Title Discovery Subject This collection showcases the geological and scientific research undertaken by the Apollo 15 crew. UUID 730300d8-5fc5-4ccd-8f0a-6b87cb985be4 Collection: Discovery Sort by: Title Creator Date Added / 4 pages Cinder Cones NASA July 31, 1971 Breccia Boulder at Mt. Hadley Delta 1 NASA July 31, 1971 Breccia Boulder at Mt. Hadley Delta 2 NASA July 31, 1971 Breccia Boulder at Mt. Hadley Delta 3 NASA July 31, 1971 Breccia Boulder at Mt. Hadley Delta 4 NASA July 31, 1971 Subsatellite Launch NASA August 4, 1971 Subsatellite Launch Photo Grid NASA August 4, 1971 Tsiolkovsky Crater NASA July 30, 1971 Film Cassette Retrieval NASA August 5, 1971 Worden's Spacewalk NASA August 5, 1971