It's not a Fata Morgana. The next thing you come up with is refraction.
There are laser experiments and countless observations that we can see too far. As I said, I don't want to convince you and this argument is bullshit in my opinion. You can believe in your cgi balls in the sky. I really don't care.
https://www.youtube.com/watch?v=ZsnmX0XRNTk&list=PLEzivhxtxgbsRfA1jEZsHFDJ3JJNeQkkB&index=15&pp=iAQB