Also

[ceb]

Oh xkcd, I love you: http://xkcd.com/1308/

Comments

[purplecthulhu]

I look at that and think 'that's a very strange configuration for an integral field spectrometer' and then start to think about line identifications.

[ceb]

You mean you don't sit round yours warming yourself by its festive glow? :-)

[nojay]

I just wish it had been animated -- seeing the Xmas tree twinkle and the fire die down and warm up...