I could only find one asteroid. Cute game, too bad you can't turn off the music. It also seems to be missing sound effects, that to me is way more important that music.
Viewing post in AstroSmashtris jam comments
Thank you for playing and letting the sound effect lovers' voice to be heard! This was a design decision, and game jams allow more experimental takes on things. Space is a very quiet place from player's vantage point, so there's that. Another point was the random incidence of hearing this song while working on the game. It too is sort of an unexpected mashup, and therefore a perfect fit for this game, at least in my humble opinion.
There's of course the option to update the game after the jam is over. I will see about the sound effects while killing a bug that I discovered in this build...