TRANSIT OF VENUS: The historic 2012 Transit of Venus commences today, June 5th, at 3:09 pm Pacific Daylight Time (22:09 UT). Spaceweather.com is covering the event with observing tips, a real-time photo gallery, and links to live webcasts from around the world. Extraordinary photos of Venus taken during the hours leading up to the transit are also featured on today’s edition of http://spaceweather.com .
SOLAR WIND: A stream of high-speed solar wind is buffeting Earth’s magnetic field, stirring geomagnetic activity around the poles. NOAA forecasters estimate a better-than-even chance of high-latitude geomagnetic storms during the next 24 hours. Aurora alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).