Question
On this Neptune-sized planet, NASA scientists detected a strong water signature in the atmosphere.
Answer: Option D
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National Aeronautics and Space Administration( NASA) scientists detected "a strong water signature" in the atmosphere of a distant Neptune-sized planet called HAT-P-26b. HAT-P-26b has a primitive atmosphere composed entirely of hydrogen and helium.It is located about 437 light-years away, HAT-P-26b orbits a star roughly twice as old as our Sun.
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