THE SUN (AS RECORDED BY NASA’S SOLAR DYNAMICS OBSERVATORY)
There hasn’t been much sun over London in recent years, but new images from nasa’s Solar Dynamics Observatory (SDO) have nevertheless sparked heightened interest in our local star. Light from the sun takes about eight minutes to reach Earth, and electromagnetic waves from solar storms can take more than a day. These large particle ejections alter the earth’s geomagnetic fields, disrupting our communication networks, our electricity supply, and possibly even our moods.














