published on: 2014-04-19 23:41:35
darvince.tumblr.com/post/83070361443/
darvince.tumblr.com/post/83076397699/
darvince.tumblr.com/post/83249617135/
darvince.tumblr.com/post/83250557047/
atmospheric-phenomena: #6 Polar Stratospheric Cloud
darvince.tumblr.com/post/83259671269/