[em-bee]

at light speed, the next solar system is 4-5 years away. but yes. although we can assume that what they ran into were all rogue planets because i don't remember seeing any stars. who knows what's out there that we haven't detected yet.

still remains the problem of everything needing to be pitch black all the time. i think even without finding any other planets they had a magic light source on the moon.

[hota_mazi]

You're assuming the Moon is traveling toward that specific system...

It's going in a random direction, and probably in a straight line.

Statistically, even at light speed, they would probably only encounter another system every few millions of years or so.

[em-bee]

you are right of course.

i am assuming the most optimistic outcome that is physically possible, no matter how unrealistic. because if we go by statistics we'd have to scrap most movies that are about an unrealistic (but possible) event.