I was in a Lear jet in 1987 that we took to max ceiling of around 51,000 feet
No question in my mind the earth is round
Ditto from sailing at sea
Ditto looking at the moon and planets
This is so stupid
All aircraft have a lens built into the windows so the Earth looks round. It is part of the conspiracy. /s
Columbus’ crew could see the earth’s curvature from a yardarm.
Everyone can.