ARLA/CLUSTER: Nuvens azuis electricas sobre a Antarctica

[João Costa > CT1FBF]

Electric blue clouds over Antarctica

NASA's AIM spacecraft has spotted electric-blue clouds forming over Antarctica.

These are noctilucent clouds (NLCs) and their apparition marks the
beginning of the 2014-2015 season for southern NLCs.
By the second week of December, Antarctica could be blanketed in electric blue.

Visit http://spaceweather.com for more information and updates