but missed out on some recent research, here’s an article about our Milky Way galaxy potentially having a “two-component” outer ring!
The concept of an outer ring by itself is not that new, but the key point here is that it may be made up of two.
This may be a subscription part of the Springer site – I’m at an office computer so I can’t tell. But there is a “look inside” option which should provide everyone with a glimpse of this fascinating article =)
And then here are the freely available slides from A.Melnik’s talk on the same subject. Plus, in the following summary (text in Russian), you can see a schematic of how our galaxy might look from “above”. Lovely meditation material for mystically inclined folks =)
This research was a joint effort of Russian and Finnish scientists, which I think is awesome, especially in light of the anti-Russian propaganda in “pop” Western media.