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NASA's Phoenix Mission to Mars
In this image taken by NASA's Phoenix Mars Lander's Robotic Arm Camera (RAC) shows a trench, informally called "Dodo" after the second dig, located within the previously determined digging area, informally called "Knave of Hearts" on June 3, 2008. The light square to the right of the trench is the Robotic Arm's Thermal and Electrical Conductivity Probe (TECP). The Robotic Arm has scraped to a bright surface which indicated the Arm has reached a solid structure underneath the surface. (UPI Photo/ NASA/JPL/Caltech/University of Arizona/Max Planck Institute)
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Max Karl Ernst Ludwig Planck (April 23, 1858 – October 4, 1947) was a German physicist who is regarded as the founder of the quantum theory, for which he received the Nobel Prize in Physics in 1918.

Planck came from a traditional, intellectual family. His paternal great-grandfather and grandfather were both theology professors in Göttingen; his father was a law professor in Kiel and Munich; and his paternal uncle was a judge.

Planck was born in Kiel, Holstein, to Johann Julius Wilhelm Planck and his second wife, Emma Patzig. He was baptised with the name of Karl Ernst Ludwig Marx Planck; of his given names, Marx (a now obsolete variant of Markus or maybe simply an error for Max, which is actually short for Maximilian) was indicated as the primary name. However, by the age of ten he signed with the name Max and used this for the rest of his life.

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Max Planck."
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