If you go to an area with low light pollution, you may notice that the western sky in the evening appears bright even after twilight. The dim light appears to be distributed from the ecliptic plane and lingers until late evening. A similar phenomenon occurs in the morning towards the east. This is zodiacal light. It is a phenomenon where dust particles near Earth are illuminated by sunshine and the light is reflected towards ground-based observers.
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Where should you be looking?