An Aerostar "Thunderhead" balloon spotted in Wisconsin skies conducts environmental research and aids communication.

A balloon seen in southeastern Wisconsin on June 22 belongs to aerospace company Aerostar, it confirmed to the Milwaukee ...

BROWN DEER, Wis. - It's not a bird or a plane, but FOX6 News got multiple viewer calls throughout the day on Sunday, June 22, ...

A mysterious white dot floating in the sky over southeast Wisconsin this weekend has been identified as a research balloon ...

People living in southeast Wisconsin reported seeing a strange object floating in the sky Sunday. "Whether it's flying or ...

Sioux Falls, South Dakota, USA---Aerostar, a pioneering leader in stratospheric exploration and innovation, proudly announces a historic achievement: 500 consecutive days of operations in the ...