Oct. 3, 2012: A villager looks from atop a tree as forest officials & residents search for a rhinoceros that may have wandered off a wildlife sanctuary in Rani Chapori, an island in the river Brahmaputra in Assam state, India. It's a race to find the animal alive. Seven rhinos have been slaughtered by poachers in recent days. (Anupam Nath/AP)
Oct. 15, 2012: In this haunting image, a robot submarine maps the surface beneath the Antarctic sea ice. The research project provides key information on how climate change affects the frozen continent. (Handout/Reuters)
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Oct. 15, 2012: A man stands on a roof to photograph the space shuttle Endeavour as it is transported through Inglewood, Calif., en route to the California Science Center Saturday. (Rick Loomis/Reuters)
Oct. 18, 2012: Tony McCoy riding Another Trump (center) on the way to winning the simplythebestevents.co.uk Handicap Steeple Chase at Huntingdon racecourse on Oct. 16 in Huntingdon, England.
Oct. 22, 2012: Nice formation! Typhoon aircraft hold a diamond-nine formation over Lincolnshire, England. This image is among entrants in the annual photo competition that highlights work by the Royal Air Force.
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Oct. 3, 2012: A villager looks from atop a tree as forest officials & residents search for a rhinoceros that may have wandered off a wildlife sanctuary in Rani Chapori, an island in the river Brahmaputra in Assam state, India. It's a race to find the animal alive. Seven rhinos have been slaughtered by poachers in recent days. (Anupam Nath/AP)