What was the most surprising discovery of the Galileo probe when it penetrated the atmosphere of Jupiter? A) It measured only traces of the NH₃,NH₄SH,and water vapor cloud layers that are easily measured spectroscopically from Earth. B) It found no evidence of hydrogen at all in the atmosphere of Jupiter. C) It hit a hard surface just under the cloud layers,contrary to our understanding of Jupiter's atmospheric structure. D) It measured vast quantities of invisible water vapor above the cloud layers.

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The Galileo probe's most surprising discovery was that it measured only traces of ammonia (NH3), methane (CH4), and water vapor cloud layers that are easily measured spectroscopically from Earth, contrary to expectations of finding these elements in larger quantities.

What Was the Most Surprising Discovery of the Galileo Probe