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Protoplanetary Disks as Evidence
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Astronomy
AST.127 Protoplanetary Disks as Evidence
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Which observation method is especially useful for mapping cold dust rings in a protoplanetary disk?
A
Millimeter observations of thermal emission from dust grains
B
Listening for sound waves traveling through space
C
Counting visible stars in an unrelated constellation
D
Measuring rainfall near the telescope
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