Or, perhaps, a reblog, but I asked her if I could link it as a guest post.
(bigger image for gorgeous colors)
Last year, I posted a few pictures of this dazzling phenomenon I observed in the sky.
A year later, thanks to the Collins Weather Wild Guide, I have learned that what I saw were nacreous clouds, a form of iridescence.
Something I already knew: Nacreous clouds are rare, and I was very lucky to observe them.
