Certain UNSC ships travel at 2.625 light years per day. Covenant ships reach over 1,368 light years per day.
UNSC ships use fusion drives for propulsion. In Fall of Reach, ships cross solar systems in under an hour at sublight speed.
Covenant ships range from 485m to 28km. CSO supercarriers are 28km.
Infinity at 5.7km is the longest UNSC ship. Infinity travels at 1.7 light years per day.
The air inside a ship is less dense than water. This displaced water weighs less than the ship.
The Gettysburg is the fastest UNSC ship. Light capital ships are the smallest for both fleets.
Cortana was infected with the logic plague, causing her actions. Lasky is not a Spartan.