Lucas Walter

Negative thrust backwards(the bottom right button out of the galaxy for the best effect.

Control is pretty awful- if you want to go anywhere you're going there at .9999c or you'll never make it...

If you can get close enough to a cluster/sphere it should have more spheres appear inside it, but short of actually exploring all 200^3 bottom level clusters I don't really know
if it works right.  Re the controls, it's hard to tell if there's nothing inside or the if you just can't navigate close enough.