The Anomalous Hall EffectInitially discovered in 1879 by American physicist Edwin Hall, the phenomenon known as the Hall effect arises from the interaction between a magnetic field and an electric current, resulting in a measurable voltage perpendicular to both. Following its discovery, several important advancements were made, and over time, it was also discovered that magnetic materials exhibited a similar phenomenon to that observed by Hall, which became known as the anomalous Hall effect (AHE). As its name would suggest, the anomalous Hall effect is far more perplexing than its counterpart, and scientists remain unsure of what precisely may cause it. Adding to the mystery, some interpretations of its theoretical origins suggest that it may also occur in non-magnetic materials. A longtime reporter on science, defense, and technology with a focus on space and astronomy, he can be reached at micah@thedebrief.org.