You are listening to a hybrid electronic/orchestral piece of music that is just ideal for any kind of (space themed) trailer or video game title. The suspenseful beginning is starting very subtle but you will hear how the music is turning more and more into an “action scene” and the grand final is the icing on the cake 
Some huge french horns play a catchy melody, accompanied by fat epic percussions, some spiccato strings and an electric guitar.