A striking geomagnetic storm illuminated the skies across a significant portion of northern China during Friday night and Saturday morning, showcasing breathtaking auroras in a spectrum of colors. This geomagnetic event is anticipated to impact communications and GPS navigation in numerous regions of the country, although it is not likely to have adverse effects on human health. The phenomenon is set to persist throughout the weekend. Experts in space weather explain that geomagnetic storms occur when the Earth's magnetic field undergoes disruptive disturbances caused by swift coronal ejections carrying magnetic fields from the sun.