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Pierre Janssen

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Timeline

Sun, 09 Aug 2026 14:09:53 GMTIn 1868, French astronomer Pierre Janssen pointed a spectroscope at a solar eclipse in India and saw a yellow line that matched no known element on Earth, and the gas he identified in the Sun's chromosphere — named helium, after helios — would not be fo - Space Daily
Thu, 30 Jul 2026 17:08:05 GMTMarios Praxitelous - Transfermarkt

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