Solar Activity Threatens Earth's Power Grid and Communications

NASA's Solar Dynamics Observatory (SDO) has observed multiple streams of solar winds and a CME hurtling towards Earth, which could trigger a G1-class Geomagnetic storm and result in solstice auroras at high latitudes. Solar flares can cause major damage to power grids and radio communications. The SDO carries a full suite of instruments to observe the Sun and collect data from various solar activities.