As we wrap up Earth Month, Ronnie from Ellsworth wants to know: What happens to balloons that are released outside? And how do they impact the environment? Visually, they can be awe-inspiring.

North Korea has sent aloft thousands of balloons with bags of trash attached since May, which have crossed the border to become a new source of tension with the neighbouring South. The balloons ...

For many years, South Korean activists and North Korean defectors have sent balloons to the North, loaded with propaganda material criticizing dictator Kim Jong Un and USB sticks filled with K ...

CUMBERLAND, Md. — It's a chilly March morning, and Mary Bowden is standing in the parking lot of a local community college. Bowden is a professor of aerospace engineering at the University of ...

For decades, the National Weather Service has released weather balloons at a clockworklike cadence at more than 100 sites across the country, as well as over the Pacific and the Caribbean.