The *best* image from Hubble of M87 is the entire *galaxy* as a moderately sized fuzzy dot, with the jet from the black-hole visible streaming from it.



That we have been able to isolate the black hole, a single 'star' system within a 1 trillion star elliptical galaxy as more than just a 'dot' is immensely impressive, especially since it was done within and through our atmosphere.

What is imaged isn't the black hole itself of course, nor even the event horizon, but rather than much larger "first stable orbit" of relativistic matter *just* able to stay in the accretion disk around it.

The angular resolution of the recent image is around 20 microarcseconds. (20 millionths of an arc second...). < roughly the size that last full stop would appear if the screen was on the moon and you were at home, using your unaided eye. That is mind-bogglingly tiny.