Helium was discovered in the Sun in 1868, almost 30 years before it was found on Earth.
Why it is true
During an eclipse, astronomers saw a yellow line in sunlight that no known element could explain. Norman Lockyer proposed a new element and called it helium, from 'helios', Greek for Sun. Only in 1895 did William Ramsay isolate it on Earth, from a uranium mineral.
Source: Royal Society of Chemistry
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