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Latest David Todd Wilkinson Stories

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2010-10-06 12:40:00

After nine years of scanning the sky, the Wilkinson Microwave Anisotropy Probe (WMAP) space mission has concluded its observations of the cosmic microwave background, the oldest light in the universe.


Word of the Day
ethnarch
  • The governor of a province or people.
The word 'ethnarch' comes from a Greek word meaning 'ruler of a tribe or nation'.
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