Scheduled to launch in April 2009, the Herschel and Planck space telescopes bring capabilities never before available to study the origins of stars, galaxies and the universe. The expected data might revolutionize both astrophysics and philosophy. Image from Environmental Graffitti.
From The BBC:
Europe's Herschel and Planck space telescopes have finally come together.
The satellites now share a common cleanroom at the Kourou spaceport in French Guiana, from where they will be despatched into orbit on 16 April.
The observatories have been produced as part of a joint programme that has taken more than 10 years to develop and which is worth some 1.9bn euros.
Their arrival in the S1 preparation hall at Kourou marks the first time the pair have come face to face.
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Update: Europe expects busy year in space -- BBC News