In general, space type scenes do look good on the HD8200. Remember, though, these are taken with the dynamic iris on. With it not engaged, black levels are not quite as good, and the space scenes tend to look a bit flat!
The Sanyo does the best job on shadow detail, followed by the Panasonic, and then the Epson, which has always been just a little weak on shadow details.
The following images are the same frame, from Space Cowboys. The first one is slightly overexposed, and the second one, more so.Definitely one of the better projectors on this scene, but still not up to the very best.
When comparing, look at the detail in the roof (tiles), and also in the assorted trees and plants. The small images below (all from the same projector) show a slightly overexposed scene. Click on the images and the larger versions of the different projectors, are far more overexposed, to allow a closer inspection of shadow details.