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  2. The world is running out of helium. Here's why doctors are ...

    www.aol.com/news/world-running-helium-heres-why...

    The world is running out of helium. Helium is the only element cold enough to keep MRI machines cool enough to function. ... “There’s only a finite amount of helium in the Earth’s crust ...

  3. The U.S. just sold its helium stockpile. Here's why the ...

    www.aol.com/news/u-just-sold-helium-stockpile...

    On Thursday, the U.S. government sold the Federal Helium Reserve, a massive underground stockpile based in Amarillo, Texas, that supplies up to 30% of the country’s helium.. Once the deal is ...

  4. National Helium Reserve - Wikipedia

    en.wikipedia.org/wiki/National_Helium_Reserve

    The National Helium Reserve, also known as the Federal Helium Reserve, is a strategic reserve of the United States, which once held over 1 billion cubic meters (about 170,000,000 kg) [a] of helium gas. The helium is stored at the Cliffside Storage Facility about 12 miles (19 km) northwest of Amarillo, Texas, in a natural geologic gas storage ...

  5. Helium - Wikipedia

    en.wikipedia.org/wiki/Helium

    The reserve was expected to run out of helium in 2018. [83] ... [139] [140] [141] In the Earth's crust, the concentration of helium is 8 parts per billion. In ...

  6. Helium storage and conservation - Wikipedia

    en.wikipedia.org/wiki/Helium_storage_and...

    Helium storage and conservation is a process of maintaining supplies of helium and preventing wasteful loss. Helium is commercially produced as a byproduct of natural gas extraction. Until the mid-1990s, the United States Bureau of Mines operated a large scale helium storage facility to support government requirements for helium.

  7. Earth’s core is leaking, scientists say - AOL

    www.aol.com/news/earth-core-may-leaking-helium...

    “And what scientific treasures they turned out to be!” Only about one helium-3 atom exists for every million helium-4 atoms, Horton said. ... Helium leaking from Earth’s core doesn’t ...

  8. Abundance of elements in Earth's crust - Wikipedia

    en.wikipedia.org/wiki/Abundance_of_elements_in...

    Abundance (atom fraction) of the chemical elements in Earth's upper continental crust as a function of atomic number; [5] siderophiles shown in yellow. Graphs of abundance against atomic number can reveal patterns relating abundance to stellar nucleosynthesis and geochemistry. The alternation of abundance between even and odd atomic number is ...

  9. Explainer-What is helium and why is it used in rockets? - AOL

    www.aol.com/news/explainer-helium-why-used...

    Helium is used to pressurize fuel tanks, ensuring fuel flows to the rocket's engines without interruption; and for cooling systems. As fuel and oxidiser are burned in the rocket's engines, helium ...