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Home Q & A Board Science-Related Homework Help Physics
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killian killian
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10 years ago
Most active galactic nuclei are at large distances from us; relatively few nearby galaxies harbor active galactic nuclei. What does this imply?
A) Massive black holes existed only when the universe was young and no longer exist today.
B) Active galactic nuclei tend to become less active as they age.
C) Active galactic nuclei can form only at large distances from the Milky Way.
D) The jets seen in many active galactic nuclei must cause them to move far away from us.
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padrepadre
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#1
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10 years ago
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killian Author
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#2
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10 years ago
Thank you sir
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