SUNGRAZING COMET: NASA's STEREO-A spacecraft has discovered another bright sungrazing comet. The Solar and Heliospheric Observatory (SOHO) has a good view of the comet's death plunge, which is happening today. Check http://spaceweather.com for movies and updates.
NORTHERN LIGHTS: A solar wind stream hit Earth on Jan. 20th sparking the first geomagnetic storm of the year and an intense display of polar auroras. Images from around the Arctic Circle may be found here: http://spaceweather.com/
SPACE WEATHER ALERTS: For less than the cost of a night at the movies, you can turn your cell phone into a space weather alert system. Sign up for Spaceweather PHONE (http://spaceweatherphone.com) to receive instant notices of geomagnetic storms, CME impacts, and strong solar flares.