Apollo 15: Detaillierte Einblicke in die Mission und die Subsatelliten-Entdeckungen

Video from the channel World Wonders about Apollo 15, linked on its Above Ten Thousand entry. Duration: 15:05. Language: English. Video type: Documentary.

English-narrated documentary about Apollo 15, the fourth mission to land people on the lunar surface, in 1971. It focuses on the lunar rover and the small subsatellite the mission left in orbit to study the Moon from above.

The crew was David Scott, James Irwin, and Alfred Worden. Scott, the commander, had already flown on Gemini 8 and Apollo 9. Worden, pilot of the command module Endeavour, stayed in orbit observing and photographing the surface while his crewmates explored the Hadley-Apennine region, with mountains and broad plains. It was the first mission with the electric Lunar Roving Vehicle (LRV) and with a higher-capacity lunar module, allowing a longer stay and more scientific payload.

From orbit, a gamma-ray spectrometer mapped the surface composition. The subsatellite, released from the command module, carried a magnetometer to study the local magnetic anomalies of a Moon with no global magnetic field. Tracking its orbit by radio measured variations in lunar gravity, linked to the mass concentrations (mascons) beneath the lunar seas.