President Barack Obama, center, poses for a group photo with local area students at the Executive Office Building in the White House complex, in Washington, Monday, Nov. 23, 2009. Earlier Obama spoke about several initiatives designed to boost science, technology, engineering, and mathematics education.
Credit: AP Photo
Demonstrators protest the visit of Iran's President Mahmoud Ahmadinejad in Brasilia, Brazil, Monday, Nov. 23, 2009.
Credit: AP Photo/Andre Penner
Cry of Victory
Robin Sonderling of Sweden reacts after defeating Rafal Nadal of Spain in their ATP World Tour Finals tennis match at the O2 Arena in London, Monday, Nov. 23, 2009. Sonderling won the match 6-4, 6-4.
Credit: AP Photo/Alastair Grant
The Christmas market on Berlin's Gendarmenmarkt with the French Cathedral, right, the German Cathedral, left, and the Konzerthaus is illuminated in Berlin, Germany, Monday, Nov. 23, 2009. Many of Berlin's 24 or more Christmas markets are opened today.
Credit: AP Photo/Gero Breloer
Out in Space
In this image made from video, astronaut Robert Satcher Jr., top, and astronaut Randolph Bresnik are seen working on the International Space Station, Monday, Nov. 23, 2009. The pair of astronauts stepped out on the third and final spacewalk of their shuttle mission Monday, helping to install an enormous oxygen tank at the International Space Station. Atlantis and its crew of seven will depart the space station Wednesday.
Credit: AP Photo/NASA
Strollers walk on a meadow near Muensing, southern Germany, during nice autumn weather on Monday, Nov. 23, 2009.