But there are still many unanswered questions. The halo that surrounds our Galaxy is one mystery region... The centre of the Galaxy hides even more secrets.
in "Who Discovered the Galaxy - Presidential Address – 1985", Heather Couper, British Astron. Assoc. Journal V. 96, No. 5 (1986), p. 293, Bibliographic Code: 1986JBAA...96..284C
"Have we discovered our Galaxy yet?" And I think the answer to this question is "No, not quite". There is plenty of work ahead for the next generation of astronomers.Heather Couper