With the polar day/night cycle firmly in front of observers , it can be somewhat dismaying that they still produce awkward 'tilting' Earth notions instead of splitting the planet's two distinct day/night cycles apart by rotational cause -

https://www.youtube.com/watch?v=WgHmqv_-UbQ

These are excellent graphics with poor explanations attached and I often thought that, without the need for priority or reference, that the Earth surface rotation as a property of its orbital motion would make it into circulation. That rotation responds to the variable orbital speed of the Earth and creates the variations in the natural noon cycle when allied with daily rotation.

So much for citizen science when observers here could influence the wider astronomical community in the right way.