Multiple Choice
What makes the Crab Nebula supernova remnant unusual as a supernova remnant?
A) It is the biggest supernova remnant visible.
B) It is the remnant of a supernova that was observed in the 20th century.
C) It is the nearest supernova remnant.
D) It is the oldest supernova remnant known.
E) It is the remnant of a supernova observed by humans.
Correct Answer:
Verified
Correct Answer:
Verified
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