As a frequent and longtime user of the FlightRadar24 app I became aware of these ballons that Google was launching in an experimental effort to bring internet to underserved rural areas. I was able to see one in real life once as it passed overhead. Had it not been for my daughter asking what that was in the sky I never would have noticed it. They typically fly between 58,000 ft-62,000 ft. So they are not easy to see. It was always interesting to see where the ballons were in real-time around the world.
