1 00:00:14,230 --> 00:00:11,430 i became interested in these clouds when 2 00:00:16,390 --> 00:00:14,240 i saw them for the first time 3 00:00:35,670 --> 00:00:16,400 they're very beautiful iridescent they 4 00:00:40,069 --> 00:00:38,310 aim is the first satellite mission 5 00:00:42,069 --> 00:00:40,079 dedicated to the study of noctilucent 6 00:00:43,430 --> 00:00:42,079 clouds 7 00:00:44,869 --> 00:00:43,440 they're changing and we don't know why