Most helium in the universe was created by the Big Bang, or through stellar fusion ("helium" comes from "helios", it was discovered by spectral analysis of the Sun).[1]
Virtually all helium on Earth was formed on Earth, through radioactive decay within its interior, releasing beta particles (helium nuclei). The helum industrially sourced tends to come from natural gas extraction -- the same reservoirs which trap natural gas (methane) also trap helium fairly well.[2]
Molecular hydrogen also exceeds escape velocity. About 1/4 of the water originally present on earth has escaped to space, after being dissociated into hydrogen and oxygen.[3]
Virtually all helium on Earth was formed on Earth, through radioactive decay within its interior, releasing beta particles (helium nuclei). The helum industrially sourced tends to come from natural gas extraction -- the same reservoirs which trap natural gas (methane) also trap helium fairly well.[2]
Molecular hydrogen also exceeds escape velocity. About 1/4 of the water originally present on earth has escaped to space, after being dissociated into hydrogen and oxygen.[3]
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Notes:
1. https://www.worldcat.org/title/researches-on-the-solar-spect...
2. https://geology.com/articles/helium/
3. http://sciencenordic.com/earth-has-lost-quarter-its-water