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Whose work identified helium first in the Sun before it was found on Earth?
Quick Answer
Pierre Janssen’s and Norman Lockyer’s. In 1868 they observed helium’s spectral lines in the solar atmosphere.
The Full Story
During a solar eclipse in 1868, Pierre Janssen and Norman Lockyer independently observed a yellow spectral line from the Sun that did not match any known element. Lockyer concluded that the line came from a new element, which he named helium after Helios, the Sun. Helium was later isolated on Earth in 1895 by William Ramsay. The discovery was a landmark in both spectroscopy and element identification.
Key Facts
1.1868: helium was identified in the Sun
2.Helium was isolated on Earth in 1895
3.Spectral lines reveal an element’s identity
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Suggested video title for this topic:
"The element discovered in the Sun before Earth"
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