Looking at the sky at night, for hours, in summer only, I notice that the sky changes. The Moon walks, the stars move around, everything changes position for me as the observer of the sky on Earth.
Of course I know the theory, it is not the sky that is falling, the Earth is rising. The Earth rotates and the observatories take note of that. For me it is much harder to see what happens, now I can! Here is the source of this moving version of the astronomical picture of the day (23 January), taken at the Cerro Paranel, Chile.