I have a weakness for nebulae, which is not something you get to say every day. The latest reason to look at them has to do with my biopunk and how I imagine the sky forming over my little biopunk colony.  Really, this isn’t work, is it? *grin*

NEBULAE: A nebula (from Latin “cloud” ;pl. nebulae or nebulæ) is an interstellar cloud of dust, hydrogen gas, helium gas and other ionised gases.

Here’s my favourite: