Winning helium hunt lifts hopes element not running out

1-trillion-liter reservoir of rare gas found in Tanzania

balloons

HEFTY HELIUM  A reservoir of more than a trillion liters of helium gas are stashed away beneath Tanzania, enough to fulfill global helium demand for everything from party balloons to MRI machines for years.

Ishmael Orendain/Flickr (CC BY 2.0)

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