Balloons at this year's Gold Cup and Saucer parade — a crowd favourite — were filled with air, not the usual helium, due to a worldwide helium shortage. Though not exactly the same as last year’s sky ...

The annual Macy’s Thanksgiving Day Parade in New York City uses roughly 400,000 cubic feet of helium gas in total to inflate its iconic giant balloons. Besides being lighter than air and ...

Hundreds of miles north of the Arctic Circle, Sandia National Laboratories researchers ensure the collection of important weather and climate data. By switching the gas used in their weather balloons, ...