March 25, 2010 (22 images)

Carl Pettersson hits from a bunker on the 1st fairway during the first round of the Arnold Palmer Invitational at the Bay Hill Club and Lodge in Orlando, Florida on March 25, 2010. UPI/Kevin Dietsch

House Speaker Nancy Pelosi (L) (D-CA) embraces U.S. Secretary of State Hillary Clinton during a Women's History Month Celebration on Capitol Hill in Washington on March 25, 2010. UPI Photo/Yuri Gripas

Russian President Dmitry Medvedev visits the Mamayev Kurgan (Mamayev Hill) World War II memorial complex, with the statue of Mother Homeland in the background, in the city of Volgograd on March 25, 2010. UPI/Alex Natin.

A dentist demonstrates on a humanoid patient robot "Hanako" during a press conference at Showa University in Tokyo, Japan, on March 25, 2010. UPI/Keizo Mori