re: That little "star" has to be the black hole
3.7 MILLION solar masses.... :) I guess that is a pretty big gravitational field.
There is a a lot of science to be done- for instance, why do the stars in that region seem to be so young? That environment would seem to be inhospitable to new star formation...
The light that made up those pictures left those stars when our ancestors were getting the hang of cave painting.