BOULDER COUNTY, Colo. — A balloon attracted the attention of the public Friday while flying near Denver. The large, white balloon was spotted flying at high altitude near Longmont Friday morning.

A white balloon-like machine resembling a giant jellyfish, wafting over metro Denver and northeastern Colorado on Friday morning, turned a few heads. It was carrying NASA instruments that measure ...

GRAND JUNCTION, Colo. (KJCT) - If you have stepped outside and paid extra attention to today’s blue skies, you may have seen a large white balloon flying above our heads. The white balloon ...

The National Museum of the U.S. Air Force will make the Alpha 5 balloon a permanent part of its collection, and the public is invited to see the balloon inflated for the last time. The final ...

A mysterious white balloon that was seen flying through the skies attracted the attention of hundreds of onlookers. But who was steering the carrier and why was it slowly making its way across the UK?