Apollo 17

7 declassified cases mention this

• PDF · 1973NASA-UAP-D005, Apollo 17 Crew Debriefing for Science, 1973
• PDF · 1973NASA-UAP-D006, Apollo 17 Technical Crew Debriefing, 1973
• AUD · 1972NASA-UAP-D028, Apollo 17 Crew Medical Debriefing, 1972
• AUD · 1972NASA-UAP-D029, Apollo 17 Crew Medical Debriefing (Continued), 1972
• AUD · 1972NASA-UAP-D009, Apollo 17 Audio Excerpt, December 7, 1972
• PDF · 1972NASA-UAP-D002, Apollo 17 Transcript, 1972
• AUDNASA-UAP-D024, “Apollo 16 Scientific Debriefing”