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29 January, 20:18

How was it possible for scientists to discover the elements helium on the sun before it was discovered on earth

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  1. 29 January, 20:23
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    Scientists used the emission spectra from the Sun to identify the elements of Hydrogen and Helium.
  2. 29 January, 20:26
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    Emission Spectra, using a spectrometer. This showed colored gas that seemed to be unearthly. Scientists later discovered this was Helium.
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