This is very interesting as well as being quite fascinating..............
It is a 24 hour observation of all of the large aircraft flights in the world, (recorded by the 'plane flight transponders, via Geo-stationary orbital satellites), patched together and condensed down to about a minute.(viz. what you see is 24 hrs duration compressed into 1 minute)
From space we look like a bee hive of activity.
You could tell it was summer time in the north by the suns foot print over the planet. You could see that it didn't quite set in the extreme north and it didn't quite rise in the extreme south.
I have never seen anything like this before this before.
We are taught about the earths tilt and how it causes summer and winter and have had to imagine just what is going on, now the "tilt" is visible