+Helium is a [chemical element](/wiki/chemical_element), the second lightest in the [universe](/wiki/universe). A noble gas, it is colorless, odorless, and non-reactive, famed for its role in lifting balloons and extreme cooling.
+## See also
+- [Noble Gas](/wiki/noble_gas)
+- [Cryogenics](/wiki/cryogenics)
+- [Hydrogen](/wiki/hydrogen)
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