Don't be so unimgainative. True science buffs would anticipate space travel, and wonder what on earth Muslims would do in outer space!
There is an answer (either a standardized time, as the sun is used as a time keeping mechanism...or defining sunset as a certain number of degrees from the horizon in these climates). The fact is, people just don't believe Muslims are that willing to adapt their customs according to circumstance...even though this is a fundamental part of our legal and ritualistic tradition.
Fasting start from the Sahar and ends at Mugrib and these times are related to sunrise and sunset. Quran and haddeit only mentioned the sun as critaria for timing in ramadan. Can you plz tell where your theory came from.