Less Asteroids and Radar = Gameplay!
IMO the number of asteroids in the system is far far too much, and far far too easy to find. I say pull back on the asteroid count significantly, and add a radar block to find them.
Allow the radar block to be connected to either an LCD or even better a projector, the same way a programmable block can be connected to an antenna, and render out what the radar can "see". Personally I would prefer a holographic display to also give the projector more than one use, but I can live with the LCD.