STRANGE CLOUDS ARE CIRCLING ANTARCTICA: NASA's AIM spacecraft is monitoring a vast ring of noctilucent (night-shining) clouds circling Antarctica. These strange clouds, formed at the edge of space by ice-frosted specks of meteor smoke, may be linked through recently discovered teleconnections to cold weather patterns in the USA. Visit today's edition of Spaceweather.com for images and more information.
Above: Looking down on Antarctica from a polar orbit, NASA's AIM spacecraft is taking daily pictures of electric-blue noctilucent clouds ringing the frozen continent.
