BIG SUNSPOT ALERT: There's a new sunspot on the sun--and it's a big one. AR2778 contains a dozen dark cores sprawling nearly 100,000 km across the solar surface. Earlier today, it began to strobe Earth with minor C-class solar flares, activity which could intensify if the sunspot's rapid growth continues apace. Visit Spaceweather.com for updates and more information.
Aurora alerts: Sign up for Space Weather Alerts and receive a text message when auroras appear in your area.
Above: New sunspot AR2778, photographed during the early hours of Oct. 27th by Mohammad Talafha of the United Arab Emirates.
