All About Spy Balloon!!

A spy balloon is literally a gas-filled balloon that is flying quite high in the sky, more or less where commercial airplanes fly.

It is also called surveillance balloon.

It has some sophisticated cameras and imaging technology on it.

They were used extensively during World War I

These are used for close-range monitoring, better image quality and for intercepting communication.

Recently, Chinese spy balloons have targeted several countries, including India, according to a media report.