The sun, in ultraviolet
An example of the fun, intriguing content I'd post on bensinterests: on 29th March 2015 I found this photograph of the sun viewed through ultraviolet:
In retrospect there's some things here I'm surprised at: no context, no source, no explanation1. It's just... fascinating.
I've described the image as being 'through ultraviolet filters' today but damned if I know if that's true↩