NASA's AIM spacecraft has spotted first Noctilucent Clouds (NLCs) of the 2018 northern hemisphere NLC season at the end of May. And just as they spotted them forming, people on the ground started seeing them, too. "They are back!" Ruslan Merzlyakov…
Following a delayed start to the northern hemisphere's 2017 Noctilucent clouds season, the magnificent, electric-blue clouds are now back in full effect. Noctilucent, or night-shining, clouds are a seasonal phenomenon, occurring most often in late spring and…
The 2015 northern hemisphere noctilucent clouds season started on May 19, 2015 when NASA's AIM spacecraft spotted a patch of electric blue clouds over the Artactic Circle. Since then, noctilucent clouds (NLCs) have been moving south and, on June 8 – 9, they…
