BLUE SKIES ON PLUTO: Earth isn't the only planet with
blue skies. Pluto has them, too. NASA's New Horizons spacecraft has just
beamed back the first color images of Pluto's atmosphere, and they look
a lot like home. Visit http://spaceweather.com for the full story.
GREEN SKIES ON EARTH: This week, sky watchers around
the Arctic Circle have seen some of the most intense auroras of the
current solar cycle. Usually, such displays are caused by CMEs. Not
this time, though. The reason for the outbreak is explained on today's
edition of http://spaceweather.com.