Helium is a fascinating element with many unique properties and applications.

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Helium is the second most abundant element in the universe, after hydrogen, and makes up about 24% of the mass of the universe. However, on Earth, helium is very rare and only accounts for 0.0005% of the volume of the atmosphere. Helium is mainly produced by nuclear fusion in stars, but it escapes from the Earth’s atmosphere because it is so light and inert.