QUOTE (kyyle23 @ Oct 26, 2008 -> 01:11 PM)
If you are traveling in space, sure, but what about when they land? Do they need lights on their own planet to make sure they dont run into other aircraft, similar to why US aircraft need lights?
Im certainly not going to discount it because it has lights.
How often would you drive around in your car with your interior lights on?
Exterior lights might be reasonable if you were on your own planet, but not if you were trying to be stealthy.