>>11683836reflection occurs based on the angle of the light hitting the object, a sphere would be the least reflective shape you could construct as the possible angle of incidence would be as small as it could be. you want the biggest flattest surface if you want reflections, which is a pyramid if you're trying to conserve the mass allotted for whatever the object is. you can also use a cube, the difference isn't much and it's a lot easier to handle if we're talking spacecraft.
