To put the fighter's size in perspective, capital ships are up to 1000m long (100x that of the fighter), planets are up 10,000m and the distances between solar systems are up to 250,000,000m (25,000 planet diameters!) apart.
Is this a typo? Shouldn't it be "planets are up to 10,000km in diameter and the distances between solar systems are up to 250,000,000km (25,000 planet diameters!) apart"?
For comparision Earth's diameter is ~12,750km, average distance from the Sun is 1AU=~150,000,000km, and is 4.22 light-years (266,873AU or 3.99x10^16km) from the next nearest star, Alpha Centauri C. Space is huge and very empty!!! It is very difficult to realistically represent such immense scale in a video game!
One of the most interesting problems we encountered is actually due to a property of computer hardware. We had these great size scales between objects, but then we wanted to spread them very far apart so that planets, stars and star systems gave the impression of being realistically separated (note: impression is the key word here; the distances aren't even close to true astronomical scale). Unfortunately, even at our mock-realism distances, we exceeded the bounds on how accurately a computer can represent a number. Even once we solved the root of this problem there were hundreds of related artifacts that propagated into the most basic assumptions you make while programming a 3D engine.
This game looks very promising!
