Flat earth theory depends on the claim that no one has ever traveled to space, since if space travel were accepted, flat earthers would have to admit that at least some of photos taken from those spacecraft demonstrate that the earth is round.
I would like to know which of the following is the flat earth theory about space travel:
A) Launching a rocket is theoretically impossible because it would violate physical law X. (Please state what X is.)
B) Launching a rocket is theoretically possible, but no country or corporation has done it because it's too expensive.
C) Launching a rocket is theoretically possible, but no country or corporation has done it because they can't figure out how.
(Note to moderator: this question is intended to start a debate, so please leave it in the Debate forum.)