Rosa Parks joins in a march at the South African Embassy in Washington, Dec. 10, 1984, protesting that country's racial policies. She's famous for refusing to give up her seat on a bus in 1955, sparking the Montgomery boycotts — but her activism spanned her entire life. AP hide caption

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A demonstrator kicks a tear gas canister during clashes with riot police near the Place de la République after the cancellation of a planned climate march. Eric Gaillard /Reuters /Landov hide caption

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Britain's Tyson Fury celebrates after winning in a world heavyweight title fight for Ukraine's Wladimir Klitschko's WBA, IBF, WBO and IBO belts in the Esprit Arena in Duesseldorf, western Germany. Martin Meissner/AP hide caption

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Demonstrators do push-ups Friday as others block motorists along Chicago's Michigan Avenue as they protest the shooting of Laquan McDonald who was killed by a police officer in 2014. Joshua Lott/Getty Images hide caption

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Oranges ripen in a grove in Plant City, Fla. Citrus greening, a disease spread by a tiny insect that ruins oranges and eventually kills the trees, has put the future of the state's $10 billion citrus industry in doubt. Chris O'Meara/AP hide caption

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A woman carries a French flag during a ceremony in Paris on Friday honoring those killed in the Nov. 13 attacks. French President Francois Hollande has encouraged the French people to display flags, something they don't often do. Thibault Camus/AP hide caption

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Coal fires burn early in the morning in January 2014 at a privately owned coal mine in India's Jharkand state, making the air dense with noxious smoke and dust. Forty percent of India's mineral wealth lies in Jharkhand. Johnny Haglund hide caption

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Every member of the board for the Museum of Political Corruption received this "kickback" button in their information folders at a recent meeting. Jessica Bloustein Marshall for NPR hide caption

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This undated photo shows Rosa Parks riding on the Montgomery Area Transit System bus. Parks refused to give up her seat on a Montgomery bus on Dec. 1, 1955, and ignited the boycott that led to the end of legal segregation in public transportation. AP hide caption

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This year's flu vaccine protects against a few different virus strains, including the H1N1 seen here. The fuzzy outer layer is made of proteins that allow the virus to attach to human cells. NIAID/Flickr hide caption

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French President Francois Hollande delivers a speech honoring victims of the Paris attacks during a ceremony at the Invalides in Paris on Friday. The names of each of the 130 people killed in the attacks two weeks ago was read aloud. Francois Mori/AP hide caption

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An illustration shows what a helicopter drone would look like on the surface of Mars. NASA/JPL-Caltech hide caption

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The U.K. coastguard and local boatmen recovered a piece of metal from the sea off the Isles of Scilly in Britain. The debris is likely from the U.S. rocket SpaceX Falcon 9, which blew up after takeoff in June. Handout/Reuters/Landov hide caption

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Willem de Kooning's Woman — Ochre (oil on canvas, 1954-55) has been missing for 30 years. University of Arizona Museum of Art hide caption

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