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
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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
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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
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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
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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
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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
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