EVERYDAY SCIENCE

Detailed explanation-1: -18, 1868: Helium Discovered During Total Solar Eclipse. 1868: A French astronomer spots an unknown element, now known as helium, in the spectrum of the sun during a much-anticipated total eclipse. The event marks the first discovery of an “extraterrestrial” element, as helium had not yet been found on Earth.

Detailed explanation-2: -Helium was first discovered in the sun in 1868 before it was found on earth.

Detailed explanation-3: -Helium is the second most abundant element in the universe after hydrogen. It is a colorless and odorless inert gas that has unique properties. What makes helium so unique? Of all the elements, helium is the most stable; it will not burn or react with other elements.

Detailed explanation-4: -On August 18, 1868, Janssen managed to do just that. He became the first person to observe helium, an element never before seen on Earth, in the solar spectrum.

Detailed explanation-5: -Answer and Explanation: Helium is the chemical element which is named after the sun. It is a gaseous element which is the product of nuclear fusion of hydrogen on the sun.