Philip composed the music for the National Geographic documentary, Inside the Milky Way.
From National Geographic;
Embark on an astounding journey across 100,000 light-years to witness key moments in the history of the Milky Way.
Using cutting-edge science, National Geographic constructs a 3-D state-of-the-art CGI model of our galaxy. Gaze into the heart of the Milky Way on the hunt for super-massive black holes. Witness as stars are born and die. Fly out and above the plane of our galaxy to understand its true shape and scour its dusty spiral arms for the possibility of life.