Beautiful pictures ... of what?

Image credit: 

Thanks to Irene Müller for the kind use of her incredible photos!

Two substances meet and react; a laboratory-grade camera captures the results. Was the camera attached to the Hubble Space Telescope, trained on some distant nebula? Deep within CERN, perhaps, recording sub-atomic impacts at high-speed? Or on a simple tabletop? We'll give you a hint: the substances reacting are essential to mammalian life on Earth. Check out the photos and see if you can tell us -- what are they?

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Answer after the jump!

COFFEE and MILK.
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Photos via Irene Müller.          

April 2, 2007 - 5:00am
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