Starship Asterisk*

Unrelated: Isn't there a bit of what might be called 'friction" in space, that is, moving bodies encountering dust and even larger things that are not moving as fast or in the same direction as the body in question? And if that is true, wouldn't the speed with which any body orbits anything be ...

The caption said that the sun is about 2/3 the size from mars as it is from earth. But I was under the impression that the apparent size of an object dropped off as the square of the distance away. So doing the math, with mars 141 million miles and earth at 93 million miles: (93 x 93)/(141 x 141), I...