Question: A blue shift in an astronomical object's spectrum indicates to astronomers that Choose one: A . the object is moving away from the observer. B

A blue shift in an astronomical object's spectrum indicates to astronomers that
Choose one:
A. the object is moving away from the observer.
B. the object's light shifted to a longer wavelength.
C. the object is moving toward the observer.
D. the object is stationary.
A blue shift in an astronomical object's spectrum

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