Multiple Choice
The presence of helium in the atmosphere of Jupiter was first established by
A) careful observation of the spectrum of hydrogen by spacecraft.
B) precise spectrophotometry of infrared emission lines of helium from Earth.
C) detection of weak absorption bands of molecular helium by the Ulysses spacecraft.
D) direct sampling of Jupiter's atmosphere by the Galileo probe.
Correct Answer:
Verified
Correct Answer:
Verified
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