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 ...

The Chinese spy balloon in the sky over Billings, Montana. Picture: AFP The discovery of US-made tech from at least five American firms underlined the failure of US efforts to restrict exports of ...

Credit: Urban Sky MOUNTAIN VIEW, Calif. — Urban Sky, a company that has developed portable stratospheric balloons to perform imaging and other applications typically done by satellites ...