[edwin hubble]

This is a funny thread.
Space science and cultural references all over the map.

[RadioAstronomer]

Thanks for the ping. I loved the movie 2001. :-)

[Aracelis]

Thanks for the ping! For comparison, here's shot of the impact sites of fragments D and G from Comet Shoemaker-Levy 9. The black spot in question appears to have at least one plume associated with it, but not halos, as demonstrated by the impacts of fragments D and G in this photo.

ESA-Science