NASA's Aeronomy of Ice in the Mesosphere (AIM) satellite has captured five complete polar seasons of noctilucent (NLC) or 'night-shining' clouds with an unprecedented horizontal resolution of 3 miles by 3 miles.
A NASA satellite has captured the first occurrence this summer of mysterious iridescent polar clouds that form 50 miles above Earth's surface.
NASA's AIM spacecraft launched Wednesday on a mission to study polar clouds.