Milky Way is larger than we thought

The Milky Way is twice the size we thought it was – News and Events – University of Sydney
Astrophysicist Professor Bryan Gaensler at the University of Sydney has determined that the thickness of the Milky Way is actually 12,000 light years, rather than the 6,000 previously thought.
I remember a recent article that posited that there was a dwarf galaxy “embedded” in the Milky Way–a galaxy that ours evidently ate aeons ago. And another article positing that instead of an ordinary spiral galaxy, the Milky Way is really a barred spiral.
It would seem, all of this taken together, that our ordinary and humdrum spiral galaxy really, in the end, is unique and individual.