It is abundant, so we&#x27;re not going to &quot;run out&quot;, but it may reach a point where it&#x27;s impractical to recover.<p>As the second most abundant element, a lot of it is found diffuse in the interstellar medium and in stars. It&#x27;s not useful to us there.<p>Right now, it&#x27;s easily and cheaply available by extracting it from certain deposits of natural gas. We should price it based on long-term need and long-term availability, which doesn&#x27;t include the helium found in distant stars.