Space weather encapsulates the prevailing conditions in the solar system caused by the solar wind and the sun’s far-reaching magnetic field. Sudden changes on the Sun, such as flares and eruptions of material, are like weather fronts, bringing with them magnetic “storms” that can be felt on the planets. On Earth, this can cause stunning auroras, but it can also create havoc with electronics. The flash of light from a flare takes about 8 minutes to reach Earth; solar material expelled from the sun in a coronal mass ejection (CME) may take hours to days to travel the distance. Magnetic storms may be brief or last for many days.