CHRISTMAS FLARES: A new sunspot (AR2473) is growing
rapidly in the sun's southern hemisphere, more than quadrupling in size
in the past 24 hours. Crackling with M-class solar flares, the sunspot
has already caused several minor shortwave radio blackouts, mainly south
of our planet's equator. More flares and radio blackouts are in the
offing as the growing sunspot turns toward Earth. Visit http://spaceweather.com for more information.