After Pierre had discovered helium on the Sun many scientist did not believe him because they thought it was impossible for an element to exist on the Sun. Helium WHO,WHEN AND WHY?Helium was discovered by Pierre Janssen was a French astronomer who discovered helium in 1868. Helium is a colourless, odourless, tasteless, non-toxic, inert monatomic gas that heads the noble gas group in the periodic table. French astronomer Pierre Janssen had been looking forward to the eclipse. Helium was first discovered in the Sun. History - It was on August 18, 1868 that the first evidence of helium was observed by French astronomer Pierre Janssen. Independently of Jenssen, Joseph Norman Lockyer in England was working on the same problem and set up a new, relatively powerful spectroscope on October 20, 1868, and observed the emission spectrum of the chromosphere during broad daylight, including same yellow line. Despite being the second most abundant element in the observable universe, helium is relatively rare on Earth, the product of the radioactive decay of elements like uranium. Other scientists didn’t believe the astronomers’ account of a new element until 30 years later, when Scottish chemist William Ramsay discovered a perplexing earthly gas hidden inside a chunk of uranium ore.[3], “Curse the man who invented helium! HistoryIn 1868, the astronomer, Pierre Janssen, discovered that helium is on the Sun. All trade marks belong to the respective owners. Where did helium get its name? Life, work, and interests Janssen was born in Paris and studied mathematics and … It just goes to show that you don’t have to go all the way to the sun to find your answer — it’s probably right here among us already. The discovery of Helium is on 1868 by Pierre Janssen, Per Teodor Cleve and Norman Lockyer. But it was later discovered that helium is present on the Earth, and later yet was discovered among uranium minerals. This observatory was built in September 1893, and Janssen, in spite of his advanced age of 69 years, made the ascent and spent four days taking observations. Pierre Janssen, who was a French astronomer discovered helium in 1868. Pierre stumbled upon the element of helium when he labeled it as a certain spectral line signature in light from a solar eclipse. Helium is used instead of the nitrogen in normal air because, after a long dive, helium leaves the body faster than nitrogen, allowing faster decompression. Anonymous. He named the element helium, from the Greek word helios, meaning sun. I appeared first as a yellow line surrounding the sun, and many scientists believed that I was a result of sodium. In stunning synchronicity, the two scientists’ papers arrived at the French Academy of Sciences on the same day, and today both men are credited with the first sighting of helium. This is where the name ‘Helium’ originated, as it was named after the Greek God of the sun, Helios. This was the first time a chemical element was discovered on an extraterrestrial body before being found on the earth. It was the English astronomer Norman Lockyer who proposed the name helium after the Greek name of the sun, Helios. From the brightness of the spectral lines, Janssen realized that the chromospheric spectrum could be observed even without an eclipse, if only he could just figure out how to block other wavelengths of visible light. Janssen originally thought it was sodium, but Joseph Norman Lockyer noticed that it didn’t correspond to the D 1 and D 2 lines of sodium. 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