Lunar eclipse
From Frikipedia
"And none of you stand so tall, Pink moon gonna get you all"
What happens when the sun and the moon pass over...the Earth...and one goes behind...no, the sun and the Earth line up and the....erm....
Geometric, space-based phenomenon, where the moon goes all pink and pretty.
The best place to watch a lunar eclipse is outside a pub near Westminster, whilst contemplating the beauty of the cosmos, the infinite nature of the universe, and whether or not you've got enough coinage left for another round.
