Which of these is not a typical part of our Galaxy's spiral arms?
a) OB associations
b) open clusters
c) giant molecular clouds
d) emission nebulae
e) globular clusters
Answer: e) globular clusters
Which of these is not a typical part of our Galaxy's spiral arms?
a) OB associations
b) open clusters
c) giant molecular clouds
d) emission nebulae
e) globular clusters
Answer: e) globular clusters