A web of sensors: How the US spots missiles and drones from Iran

When a missile is fired, it creates a strong enough heat signal to be seen in space. The satellites detect this heat using sensitive, infrared sensors and send an alert within seconds

A web of sensors: How the US spots missiles and drones from Iran
When a missile is fired, it creates a strong enough heat signal to be seen in space. The satellites detect this heat using sensitive, infrared sensors and send an alert within seconds

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