Sound does not travel through the vacuum of space. Explain why this is true. Go beyond just "no medium" - this simply restates the question.

1. Sound does not travel through the vacuum of space. Explain why this is true. Go beyond just "no medium" - this simply restates the question. Explain it in terms of how particles/molecules help to transmit sound - think "what must the particles of a medium actually do to transmit sound?".