What was the first extraterrestrial radio source to be detected?
A) Cassiopeia A (a supernova remnant)
B) the center of our Galaxy
C) Jupiter
D) the Sun

Name: What was the first extraterrestrial radio source to be detected? A) Cassiopeia A (a supernova remnant) B) the center of our Galaxy C) Jupiter D) the Sun
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The Answer of What was the first extraterrestrial radio source to be detected?
A) Cassiopeia A (a supernova remnant)
B) the center of our Galaxy
C) Jupiter
D) the Sun

What Was the First Extraterrestrial Radio Source to Be Detected