Engineers are asked to design a system that can warn airlines about disruptions to navigation signals within hours of a solar storm. Which technology would be best suited for this task?

A satellite measuring emissions from the Sun can monitor solar activity in real time and detect bursts associated with storms that may disrupt navigation signals. That information can give airlines warning before the effects reach or interfere with Earth. The other choices focus on Earth’s atmosphere, eclipse observations, or planetary orbits, which are not suited to timely solar-storm alerts.

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