Question

Name the element which was discovered extraterrestrially before being found on the earth.

Answer 1

The correct answer is the gas Helium. It was first observed in space before being discovered on earth.

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Answer 2

the element which was discovered extraterrestrially first and later on earth was helium (He) . it has atomic number of 2 . it was discovered in 1868 by a French astronomer before being discovered here on earth . He has a mass number of 4 and is present in abundance in sun and also other heavenly bodies

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