This showed up when I looked at our APRS tracks after a recent ride:
Poking around a bit showed the target:
Contrary to what I thought, it didn’t come up the Hudson River from West Point:
Knowledge of the Universal Law of the Conservation of Perversity informs you a balloon will never land in the middle of a putting green:
Apparently the launch is part of a regular class project at West Point. Good clean fun!
The Smell of Molten Projects in the Morning 
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3 responses to “Monthly Science: As Seen On Radio”
It’s wonderful that you “saw” the balloon that day.
Here are my slides about the mission (and the one the year before it): http://www.spy-hill.net/~myers/talks/USMA-HAB-2018.pdf
And now we know the rest of the story!
Apropos of space exploration: I got The Thousand Yard Model a zillion years ago, collected a box of planets and a bowling ball sun, set it up at several family gatherings, and never took space travel for granted ever again.
That’s great. I was set my model up on the Walkway Over the Hudson two weeks ago, but then had to stow it immediately when they spotted approaching lightning. I hope to have a few more shots at it this summer.