The 3D heart of the Crab Nebula

Astronomers have done something very cool: Made a 3D map of the expanding debris from the supernova explosion that created the Crab Nebula, one of the closest and brightest such supernova remnants in the sky.

By creating a model of the 3D shape, it's possible to virtually observe the nebula from any direction, and to their surprise the astronomers found it's not an ellipsoid (like a the shape of an American football) as thought, but actually shaped like a heart. In this case I mean a cardioid, ...