This is from Apollo 15 NASA footage. If you did Physics at school or college you will know that sound cannot travel in a vacuum. Yet we can hear the Astronaut's Hammer Strokes in this clip. Space is a vacuum = No Air. Quote ' In Space no-one can hear you scream.' All Astronaut communication is through headset radio. Vibrations cannot travel through the vacuum even to the astronaut's radio, so the hammer strokes should be silent, yet we can hear them! Conclusion: Either there is Air on the Moon or NASA faked the Apollo 15 program. SC1.