Photo

This should get the creationists a run for their money...

Ariane 5 launch of the Herschel & Planck telescopes designed to study cosmic microwave radiation and of the clues it gives about the Big Bang, the structure and composition of the Universe (photo from here).

From here: The Cosmic Microwave Background (CMB) is the relic heat from the Big Bang, released 380,000 years after beginning and still traveling freely through space today. At that early time, weak fluctuations of matter density were present, which are seen as variations of temperature in the CMB. By observing these fluctuations, cosmologists can infer how the large-scale structure of today’s Universe - galaxies, galaxy clusters and filaments - were formed.