In this diagram, the galaxy at the left side is a(n) : 
Definitions:
Champion
An individual who passionately supports, promotes, or defends a particular cause, idea, or project, often inspiring others to do the same.
Convert
To change something into a different form or properties, typically to serve a different function or purpose.
Defector
An individual who renounces their allegiance to one group in favor of another; often used in political, military, or social contexts.
Doubter
An individual inclined to question or exhibit skepticism towards certain beliefs, ideas, or the certainty of outcomes.
Q12: All the known matter, both normal
Q16: Including all energy and mass, both dark
Q28: Harlow Shapley found the Milky Way was:<br>A)centered
Q33: Why does conversion of its core to
Q42: The "helium flash" occurs at what stage
Q54: Which of these does Mars NOT have
Q79: All of the following are clusters of
Q80: Of the billions of possible combinations of
Q87: If the density of the universe is
Q89: Why does SETI concentrate on the water