When you think of helium, you probably think of blowing up a bunch of balloons. But that's just the tip of the iceberg for ...

Cracker question because helium balloons are actually a pretty controversial topic. Some people argue that they are harmful to the environment because on returning to Earth, animals mistake them ...

Current law allows the release of up to 10 helium-filled balloons in a 24-hour period. But critics say that the law is not widely known and not enforced.