Gallery: Universe's Cosmic Microwave Background Revealed by Planck Observatory

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Planck's All-Sky Map: Cosmic Microwave Background

Credit: ESA and the Planck Collaboration
This image unveiled March 21, 2013, shows the cosmic microwave background (CMB) as observed by the European Space Agency's Planck space observatory. Among…Read More »

the discoveries: The universe is older than thought, 13.82 billion years old. The CMB is a snapshot of the oldest light in our Universe, imprinted on the sky when the Universe was just 380 000 years old. It shows tiny temperature fluctuations that correspond to regions of slightly different densities, representing the seeds of all future structure: the stars and galaxies of today. [Full story.]   Less «
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