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How many types of galaxies are there in the Hubble Diagram?
3
2
5
4
Elliptical galaxies are:
teenaged
young
old
Spiral galaxies are:
A galaxy that isn't a spiral or an elliptical is called a(n):
nebula galaxy
weird galaxy
unusual galaxy
irregular galaxy
What color are young galaxies and stars?
red
green
purple
blue
What color are old galaxies and stars?
One galaxy can go through all the main galaxy types (over time) during its lifetime.
