why is the aurora borealis so far south

The aurora borealis is showing up much farther south mainly because the Sun is in a very active phase of its cycle, sending unusually strong bursts of charged particles toward Earth that push the auroral zone closer to the equator. The shape and strength of Earth’s magnetic field also guide where these lights appear, so when solar storms are intense, the usual “polar” lights can briefly be seen in mid‑latitudes like mainland Europe or the continental United States.