The bright dot in the image is most possibly a neutron star, one of the possible remannings of a supernova explosion. The weird thing is the star is not at the center of the explosion, it slightly towards the right. Why?
No one knows. There is not even a theory to explain why the remaining star is not at the center. This leads scientists to think about asymmetric supernova explosions, which can change our ways of understanding stars and ending of their lives altogether.