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by dylan604 1217 days ago
From someone that has done a much smaller balloon launch, it's not the balloon that gets detected as much as the payload. Our civilian weather balloon launch had a metallic reflector in line specifically to make it more visible on radar. The images I've seen of the payload under the large balloon from last week didn't look all that stealthy in shape, but I have no idea what it was made from? If it was made of plastic, would that reflect radar?