I’ve just seen this video posted in my friend’s Telegram group.

Has anybody got an explanation for why at nearly 300,000ft the horizon appears curved using a rectilinear lensed camera?

My first initial reaction was “it must be fake! they’re using cgi!”. But due to quality and high definition of this footage I’m not so sure of its fake.

I’m not a globe believer at all, I just saw this video and couldn’t really find an explanation for the apparent curved horizon at such an altitude …