If a Nearby Galaxy Still Acts Like a Quasar Today

question 17

Multiple Choice

If a nearby galaxy still acts like a quasar today, what is the most likely explanation?

• A) the galaxy was formed recently, and is just now going through its "adolescence"
• B) the galaxy must have an enormous Doppler shift and must have traveled here from a large distance away
• C) the galaxy must be made entirely of very massive stars; very few low mass stars exist in it
• D) the galaxy must be undergoing a collision with another galaxy that is providing fresh fuel for its central black hole
• E) the dark matter in the galaxy must be undergoing a transformation into matter we can see

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