Apollo 15 OPS beta cloth: Lunar surface + rover + deep-space EVA used 8x10 leonov Displayed in a protective clear

Displayed in a protective clear acrylic case

Gene Cernan and Tom Stafford extensively tested the Lunar Module in lunar orbit may 1969

Only 30 such acrylics were made

numerous individual dust particles may be observed

Mir crews often spent many months in orbit

Apollo 15 OPS beta cloth: Lunar surface + rover + deep-space EVA used 8x10 leonov Displayed in a protective clearUsed during three Apollo 15 lunar EVAs and a deep space EVA Exposed to the lunar environment for more than 18 hours and deep space environment during mankind's first deep space EVA performed by Al Worden. The OPS supplies the EMU with oxygen purge flow and pressure control for certain failure modes of the PLSS or PGA during EVA. In the event of a PLSS failure, the OPS flow is regulated to 3. 7 + 0. 3 psid for 30 minutes to provide breathing oxygen to