A spectacular display of the northern lights, also known as the aurora borealis, is expected to be visible across large parts of the northern U.S. this weekend. This comes after the Sun unleashed one of the most powerful solar flares in recent years, triggering geomagnetic storms that could bring the colorful auroras further south than usual. Solar Flares and Coronal Mass Ejections: What’s Driving the Aurora?Theaurora borealis is typically caused by solar winds interacting with Earth’s magnetic field, but this weekend’s enhanced display is the result of a much more intense solar event. On Octo…
