A Radio Galaxy Whose Lobes Are Swept Back as If

question 19

Multiple Choice

A radio galaxy whose lobes are swept back as if forming a tail probably indicates

• A) the galaxy is isolated, not part of a cluster.
• B) evidence for intergalactic matter.
• C) the galaxy is moving towards Earth.
• D) the galaxy is about to evolve into a spiral.
• E) there must be another galaxy nearby.

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