Multiple Choice
How have astronomers searched for evidence of MACHOs in the halo of the Milky Way?
A) They search for stars that are binary companions of MACHOs.
B) They search for rapidly moving,massive gas clouds.
C) They search for disturbances in the background of gravitational waves.
D) They search for stars whose light is briefly amplified by gravitational lensing.
Correct Answer:

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Correct Answer:
Verified
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