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Helium Fields Forever?

Experts develop technique to locate Earth's helium reserves.

RELATED TAGS: NATURAL RESOURCES
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When prospectors discovered the first underground helium reserve in 1903, they deemed the gas useless because it wasn’t flammable and couldn’t be sold as fuel. Over a century later, liquid helium is an invaluable coolant for MRI scanners, and the gas also has applications in nuclear power, deep-sea diving and (of course) party balloons. Yet supplies on Earth are finite and unreliable because reserves have only been found accidentally during petroleum exploration.
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