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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):
irregular galaxy
weird galaxy
nebula galaxy
unusual galaxy
What color are young galaxies and stars?
blue
red
purple
green
What color are old galaxies and stars?
One galaxy can go through all the main galaxy types (over time) during its lifetime.
