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Author Question: Why can't galaxy evolution go from elliptical to spiral to irregular? What will be an ideal ... (Read 92 times)

ericka1

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on: Jul 27, 2018
Why can't galaxy evolution go from elliptical to spiral to irregular?
 
  What will be an ideal response?

Question 2

________ clusters are blue in color and diffuse.
 
  Fill in the blank(s) with correct word


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frankwu0507

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Reply #1 on: Jul 27, 2018
Answer to Question 1

An elliptical galaxy cannot become a spiral galaxy or an irregular galaxy because ellipticals contain almost no gas and dust from which to make new stars. That means elliptical galaxies can't be young galaxies. Spiral and irregular galaxies cannot evolve into elliptical galaxies because spiral and irregular galaxies contain old stars as well as young stars. The old stars tell you that spiral and irregular galaxies can't be young.

Answer to Question 2

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ericka1

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

ktidd

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Reply 3 on: Yesterday
Excellent

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