Gangzoom trying to get us back on track .
I can't believe we're still debating flat earth. We're going over the same points over and again.
The mast/ship IS at a different angle to ourselves when on the horizon to ourselves, but because of the scale of this planet and the fact it tilts away from us it isn't measurable with eye or lense. If you fly none stop in one direction, you WILL end up back where you started. Why would our planet be flat but the moon sun and other planets are all spheres? The ISS can be seen zooming over head at night, so it's up there. Time zones, magnetic north pole, gravity... the list is endless.