I like the song. It's intense and the main riff you use works - but if you were going for something expressively sad I did not get that. The progression is invigorating and dance. It could be used in a video game where I control a spaceship and i'm dodging comets and meteors - fighting alien space ships.
It's fast-paced and driven. To me it's more like "Blasting through Space". I like it.
It's well put together and technically well made.
Good job man.