Oklahoma City Thunder forward Kevin Durant (left) and Miami Heat forward LeBron James warm up before an NBA charity basketball invitational game in Oklahoma City on Oct. 23. The NBA had a series of exhibition games to keep players in the spotlight during the lockout. The lockout is hurting local businesses and arena employees in Oklahoma City. Sue Ogrocki/AP hide caption

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Some Local Businesses Hurting Without NBA Assist
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NASA's next Mars rover, Curiosity, seen in this artist's rendering, will use 8 pounds of plutonium-238 as its power supply. That's a significant portion of the remaining space fuel. NASA and the Department of Energy have offered to split the costs of producing the fuel, but Congress has so far opposed that arrangement. NASA hide caption

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The Plutonium Problem: Who Pays For Space Fuel?
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Tesla Coil Josh Nelson
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Weena (Love Theme From "The Time Machine") Josh Nelson
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Former President Clinton and President Obama at the White House; December 10, 2010. Jim Watson /AFP/Getty Images hide caption

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President Clinton: 'There's Very Little Talk About What Actually Works'
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All of Lee Wellstone Conspiracy
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Edge Wellstone Conspiracy
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Song for Koncha Tribecastan
The Master Room Bei Bei & Shawn Lee

Nicolaus Copernicus made the astounding claim that Earth revolves around the sun, not the other way around. He's seen here circa 1515. Hulton Archive/Getty Images hide caption

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For Copernicus, A 'Perfect Heaven' Put Sun At Center
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Orange Wedge The Chemical Brothers
Shooby Shooby Do Yah! Mocean Worker
Living for the City The Soul Rebels

Delaware Republican Senate candidate Christine O'Donnell delivers remarks at the Tea Party Express rally in 2010. Some say Republicans threw away votes by nominating ultra-conservative O'Donnell. Rob Carr/AP hide caption

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Tea Party Looks To Recapture Election Magic In 2012
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Boathouse on the Lullwater Noam
Day Down Noam Pikelny
33 1/3 Joan Jeanrenaud, PC Munoz
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Noise Joan Jeanrenaud, PC Munoz
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Solitary Waltz Adrienne Torf
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People line up outside an unemployment office in Madrid in February. The country has the eurozone's highest unemployment rate at more than 21 percent. Arturo Rodriguez/AP hide caption

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In Spain, Low Wages Become Increasingly Common
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Track-and-Field Bookmobile
Helium Tin Hat Trio
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A model shows a view of the Crystal Bridges pavilion some museum staff refer to as "the armadillo" because of how its curved, copper bands resemble the animal's shell. John Horner/Crystal Bridges Museum of Art hide caption

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Wal-Mart Heiress Brings Art Museum To The Ozarks
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Concerto for Violin and Orchestra in B-Flat Major, K. 207: I. Allegro moderato Jaap Schroder / Mozart - Ensemble Amsterdam / Franz Bruggen
Sonata in C Major, BWV 1033 - Allegro Kate Steinbeck & Amy Brucksch