You've probably been to parties decorated by floating helium balloons, but could they soon be a thing of the past? Some people have been posing the question, as there is a shortage of helium. While ...

It is something guaranteed to catch the eye of most young children on a day out - a huge bunch of floating, brightly-coloured helium balloons for sale. And for many people, a vital element in ...

The US has been selling off its helium reserve, established in the 1920s to provide gas for airships - but even so, shortages have been occurring. Some scientists believe a finite resource that could ...

It is the lighter-than-air gas that makes a party balloon float up to the ceiling, but a shortage of the element is threatening to disrupt critical research projects. In 1996 the US government ...