Republican presidential candidate Mitt Romney speaks to supporters at a Consol Energy Research and Development Campus in South Park, Pa.
Jeff Swensen/Getty Images
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Barack Obama applauds for participants in the Wounded Warrior Project's Soldier Ride as they kick off their journey from the South Lawn of the White House. Obama hosted the wounded soldiers to kick off a three-day ride that will finish in Annapolis, Md.
Chip Somodevilla/Getty Images
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Fast Eddy Aki'a of Hawaii smokes a joint as thousands gathered to celebrate the Colorado's medicinal marijuana laws and collectively light up in Denver.
Marc Piscotty/Getty Images
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A May Apple grows in Moreland Hills, Ohio, on Earth Day.
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United States' Aarne Bielefeldt dresses his beard as he prepares to attend International German Beard Championships in Bad Schussenried, Germany.
Felix Kaestle, DAPD/AP
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Fireworks streak across the sky as Egyptian protesters fill Tahrir Square in Cairo, Egypt. Tens of thousands of protesters packed Tahrir Square in the biggest demonstration in months against the ruling military, aimed at stepping up pressure on the generals to hand over power to civilians.
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American Airlines and American Eagle employees march to U.S. Bankruptcy Court to protest against American's plans to cut jobs and labor costs while under bankruptcy court protection in New York City.
Spencer Platt/Getty Images
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Nesting pelicans fly on Cat Island, which has eroded greatly since he Deepwater Horizon oil spill, in Barataria Bay, Louisiana.
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Denny Hamlin celebrates in victory lane after winning the NASCAR Sprint Cup Series auto race at Kansas Speedway in Kansas City, Kan.
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Birds perch on a branch during a spring snowstorm in Pembroke, N.Y. A spring nor'easter packing soaking rain and unleashed up to a foot of snow in some areas.
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Lights illuminate the Mexican town of Xalitzintla as the looming Popocatepetl volcano spews ash and steam during an early morning eruption.