This time, I have uploaded an animation. It is the result of an interesting project that I have done together with Don Goldman: the expansion of NGC 2736, a nebula that is part of the Vela Supernova Remnant. In the web site, you will find many more details of what we did, as well as the animation that shows that the Heavens are far less “immutable” than usually thought of. They change, but they take their time… Take a look into:
I must confess that I enjoyed working in this project as much as getting the final result!