Hundreds of thousands of people crowd Copacabana Beach in Rio de Janeiro on Sunday as Pope Francis celebrates the final Mass of his visit to Brazil. Security lapses, traffic chaos and other logistical snafus marred the visit.
Former cosmonaut Alexey Leonov, left, the first man to perform a spacewalk, passed an Olympic torch to Mikhail Tyurin, who will lead the mission to the International Space Station in November.
Oscar Pistorius of South Africa runs in the men's 200-meter event at the Paralympic World Cup in May. Some observers have suggested Pistorius receives an unfair advantage from his carbon-fiber "blade" legs.
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