I can steer without hands, I guide both animals and machines, my signals can be detected from afar. What am I?

Category: Science · Difficulty: hard

Hint: Think about the systems we use for direction.

Answer

A navigational signal

Explanation

A navigational signal includes various technologies that help determine position and direction in navigation systems.

This is a hard science riddle — a tricky one that takes a little thought. The answer is A navigational signal.

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