Background music to the space theme.

Holst "Mars"

"Holst's planets were finished in 1916 and first performed in their entirety in 1920 (making the composition public domain). Performance by US Air Force band. Source: Performance by U.S. Air Force Bands Program [1]. This image or file is a work of a U.S. Air Force Airman or employee, taken or made during the course of the person's official duties. As a work of the U.S. federal government, the image or file is in the public domain [1] ."