Planck sheds new light on the Big Bang


Spacecraft Planck

The wealth of information they provide about the history and composition of the universe includes in particular: the most accurate map of the cosmic microwave background ever obtained; evidence of an effect predicted by inflationary models; a lower value for the expansion rate of the universe; and a new estimate of its composition.

Much of this data was collected by Planck’s main instrument, HFI, which was designed and assembled under the supervision of the Institut d’Astrophysique Spatiale (CNRS/Université Paris-Sud) with funding from CNES and CNRS.
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Dernière modification : 28/03/2013

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