For How Long Did Vigorous Star Formation Last in Elliptical

question 75

Multiple Choice

For how long did vigorous star formation last in elliptical galaxies?

• A) continuously throughout the galaxy's life, right to the present day
• B) about the first million years of the galaxy's life
• C) about the first billion years of the galaxy's life
• D) about the first 8-10 billion years of the galaxy's life

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