Ridiculously Beautiful Clouds over Denver

Over the weekend I was in Denver to do a talking head gig for an upcoming science documentary (I'll have more on that when it's closer to airing). After we finished for the day I went outside to load up my car, and I do what I always do: I looked up at the sky. The Sun was just setting, and to the east was a bank of clouds... but one so ridiculously and jaw-droppingly spectacular I ran inside to grab the crew and show them. We stood outside for the next 15 minutes just gawking at them, trying to...