I took this photo in Bucharest on March 10, 2025, at 5:55 PM, just before sunset. You can see that the moon is shadowed at the bottom, which indicates that the light source is higher in relation to the observer. But the sun was setting, which means much lower. If you make an imaginary triangle between the moon, the observer and the sun, you realize that the sun must be much higher in the sky to be able to illuminate the moon in this way. To understand what I’m talking about, you need to observe the illumination of the moon at sunset or sunrise, because at those times the effect is best visible.
What this photo demonstrates - that in reality the sun is much higher in the sky, although we see it at sunset. Sunset is an illusion. This is due to the curvature of light rays upwards, towards the center of the concave Earth. This creates the illusion that more distant objects are lower than they actually are. Thus, the sun, which is actually higher in the sky, we see at sunset. In particular, the Earth appears convex, because the further an object is from us, the more we have the illusion that it is lower.
I also want to remind you of the photographs of sea ships, which seemed to float high in the air and which were classified as mirages. I think that this was their real position, which became visible due to the temporary cessation, for unknown reasons (perhaps due to the large metal mass of the ships) of the curvature of light.