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Planck
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Planck satellite. Artist's conception of the Planck satellite, showing the path that microwaves follow through the satellite. Planck
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Planck satellite.
Planck satellite.

Planck

European Space Agency satellite
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Written by
Dave Dooling
Education and Public Outreach Officer, National Solar Observatory, Sacramento Peak, New Mexico. Coauthor of Engineering Tomorrow.
Dave Dooling
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Planck, a European Space Agency satellite, launched on May 14, 2009, that measured the cosmic microwave background (CMB), the residual radiation left over from the big bang, at a much greater sensitivity and resolution than was provided by the U.S. Wilkinson Microwave Anisotropy Probe (WMAP). It was named in honour of German physicist Max Planck, a pioneer in quantum physics and in the theory of blackbody radiation. It was launched on an Ariane 5 rocket that also carried Herschel, an infrared space telescope. Like WMAP, Planck was positioned near the second Lagrangian point (L2), a gravitational balance point between Earth ...(100 of 274 words)

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