Who discovered helium?

Vibhor27 Jul, 2022Education

The first evidence of helium was obtained on August 18th, 1868 by French astronomer Jules Janssen. While in Guntur, India, Janssen observed a solar eclipse through a prism, whereupon he noticed a bright yellow spectral line (at 587.49 nanometers) emanating from the chromosphere of the Sun. At the time, he believed it to be sodium, since it was proximate to the D1 and D2 Fraunhofer lines.