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In 1868 astronomers found a new element in the Sun's light, named it helium for the Greek word for the Sun, and no one found a trace of it on Earth for another 27 years

The gas in birthday balloons was read off the Sun before anyone proved it existed on Earth, and the claim was doubted for more than a decade. Every other chemical element on the periodic table was found first in a rock, a flame, or a jar of gas somewhere on Earth. Helium was found in the light of the Sun. During a total solar eclipse on August 18, 1868, a French astronomer named Pierre Jan... [6682 chars]

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