SUNSPOTS STARING AT EARTH: Solar activity has been low for months.
That could soon change. Two big sunspots are staring directly at
Earth, and one of them has an unstable magnetic field that harbors
energy for M-class solar flares. Images and updates are available at http://spaceweather.com
CLOUDS INVADE THE USA: For the first time this summer, bright
noctilucent clouds have crossed the Canadian border into the
continental USA. Formed by wisps of summertime water vapor freezing
around meteor smoke, the electric-blue ripples were sighted by multiple
observers in Seattle and surrounding areas. Check out the video on http://spaceweather.com.