Krypton and xenon are useful noble gases that we harvest directly from the atmosphere using an energy intensive process that cools air to -300 degrees F. Now, chemists have created a simple, energy-efficient process to separate these gases at room temperature using a special kind of crystal.

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Krypton and xenon are useful noble gases that we harvest directly from the atmosphere using an energy intensive process that cools air to -300 degrees F. Now, chemists have created a simple, energy-efficient process to separate these gases at room temperature using a special kind of crystal.