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