Helium, the second most abundant element in the universe, makes up about 24% of its mass. Despite its cosmic abundance, helium on Earth is surprisingly rare and non-renewable. Unlike other gases, helium is so light that once it escapes into the atmosphere, it drifts into space and is gone forever. Most of the helium we use today comes from the slow radioactive decay of elements underground, trapped in natural gas fields over millions of years. It plays a crucial role in science and medicine, fro
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