What makes a rainbow a rainbow? Apparently the answer is 42.
It looks like the aftermath of an epic battle between a clan of Bronies and the Power Puff Girls.
Science has just made a quantum leap forward in 1980s fashion thanks to bastard hogberries.
There's nothing quite like a rainbow: fleeting, beautiful and natural, they're a rare little surprise of beauty from nature. But why should nature have the last say on when a rainbow shows up?