Recently on a YUL-LAX flight (number AC797), I was sitting at one of the right side windows and saw these nine (may be unclear on image) extremely bright points of reflection.
Easier to spot view Here.
I don't have an exact location, but the aircraft was over a vast sandy/rocky terrain so I presume that I was close to Los Angeles/California.
These points remained for an extended amount of time and I am certain that they were not ghosts/reflections off the aircraft's windows.
What did I manage to photograph? A solar farm? A military base? Tesla's famous Gigafactory One?