Photostream : President Obama’s Week in Pictures (April 12-16, 2010)

Barack Obama
AP

President Barack Obama arrives to greet guests during the official arrivals for the Nuclear Security Summit in Washington, Monday April 12, 2010.

President Barack Obama greets  Indonesian Vice ...
AP

President Barack Obama greets Indonesian Vice President Boediono during the official arrivals for the Nuclear Security Summit in Washington, Monday, April 12, 2010.

Barack Obama, Doris Leuthard
AP

President Barack Obama talks with Swiss President Doris Leuthard during the official arrivals for the Nuclear Security Summit in Washington, Monday April 12, 2010.

Barack Obama
AP

President Barack Obama delivers a statement during a news conference at the conclusion of the Nuclear Security Summit in Washington, Tuesday, April 13, 2010.

Barack Obama
AP
President Barack Obama answers questions during a news conference at the conclusion of the Nuclear Security Summit in Washington, Tuesday, April 13, 2010.
U.S. President Obama speaks to Germanys ...
Reuters
U.S. President Barack Obama (C) speaks to Germany’s Chancellor Angela Merkel (L) and Singapore’s Prime Minister Lee Hsien Loong during the first plenary session at the Nuclear Security Summit in Washington, April 13, 2010.
U.S. President Obama talks with Kazakhstans ...
Reuters
U.S. President Barack Obama (C) talks with Kazakhstan’s President Nursultan Nazarbayev (L) as Jordan’s King Abdullah II bin Hussein listens during the group photo at the Nuclear Security Summit 2010 in Washington, April 13, 2010. Behind them are (L-R) South Africa’s President Jacob Zuma, Russia’s President Dmitry Medvedev and Switzerland’s President Doris Leuthard.
Barack Obama, Jose Luis Rodriguez Zapatero
AP
President Barack Obama talks with Spanish Prime Minister Jose Luis Rodriguez Zapatero during the opening plenary session of Nuclear Security Summit in Washington, Tuesday, April 13, 2010.
Barack Obama
AP
President Barack Obama delivers opening remarks to the participating members of the Nuclear Security Summit at the Plenary Session, in Washington, Tuesday, April 13, 2010.
U.S. President Barack Obama speaks during the ...
Reuters
U.S. President Barack Obama speaks during the first plenary session at the Nuclear Security Summit in Washington, April 13, 2010.
Barack Obama, Joe Biden
AP
President Barack Obama talks with Vice President Joe Biden during the opening plenary session of Nuclear Security Summit in Washington, Tuesday, April 13, 2010.
Barack Obama, Lee Myung-bak
AP
President Barack Obama talks with South Korean President Lee Myung-bak, left, during the opening plenary session of the Nuclear Security Summit in Washington, Tuesday, April 13, 2010.
Barack Obama, Cristina Fernandez
AP
President Barack Obama talks with Argentine President Cristina Fernandez during the opening plenary session of the Nuclear Security Summit in Washington, Tuesday, April 13, 2010
Obama to present new vision for US space travel
AFP/Getty Images/File

US President Barack Obama is seen at the Washington Convention Center in Washington, DC on April 13. Obama will travel to Kennedy Space Center, in a bid to soothe critics of his plan to scrap an over-budget Moon launch program and reshape NASA’s future.

U.S. President Barack Obama walks to his limousine ...
Reuters
U.S. President Barack Obama (3rd L) walks to his limousine after stepping off Air Force One at Miami International Airport in Miami, Florida, April 15, 2010.
Barack Obama, Elon Musk
AP
President Barack Obama walks to the SpaceX Falcon 9 launch vehicle with Elon Musk, of SpaceX, Thursday, April 15, 2010, at Kennedy Space Center, Fla.
Barack Obama, Elon Musk
AP
President Barack Obama walks away from the SpaceX Falcon 9 launch vehicle with Elon Musk, of SpaceX, right, Thursday, April 15,, 2010, at Kennedy Space Center, Fla.
U.S. President Barack Obama greets military personnel ...
Reuters
U.S. President Barack Obama greets military personnel before boarding Air Force One at Andrews Air Force Base near Washington, April 15, 2010.
U.S. President Barack Obama greets military personnel ...
Reuters
U.S. President Barack Obama (R) greets military personnel before boarding Air Force One at Andrews Air Force Base near Washington, April 15, 2010.
Barack Obama
AP

President Barack Obama shakes hands before boarding Air Force One at Andrews Air Force Base, Md., Thursday, April 15, 2010.

Barack Obama, Steven M. Shepro ...
AP
President Barack Obama walks with Air Force Col. Steven M. Shepro, after arriving at Andrews Air Force Base, Md., Thursday, April 15, 2010, prior to traveling to Florida.
U.S. President Barack Obama walks with astronaut ...
Reuters
U.S. President Barack Obama (C) walks with astronaut Buzz Aldrin (3rd L) to board Air Force One at Andrews Air Force Base near Washington, April 15, 2010.
U.S. President Barack Obama walks with astronaut ...
Reuters

U.S. President Barack Obama (L) walks with astronaut Buzz Aldrin (C) to board Air Force One at Andrews Air Force Base near Washington, April 15, 2010

Barack Obama
AP

President Barack Obama walks out to speak at a Democratic National Committee fundraiser at the Arsht Center for the Performing Arts in Miami, Thursday, April 15, 2010.

Barack Obama
AP
President Barack Obama speaks at a Democratic National Committee fundraiser at the Arsht Center for the Performing Arts in Miami, Thursday, April 15, 2010.
Barack Obama
AP

President Barack Obama speaks at a Democratic National Committee fundraiser at the Arsht Center for the Performing Arts in Miami, Thursday, April 15, 2010.

Barack Obama
AP

President Barack Obama speaks at a Democratic National Committee fundraiser at the Arsht Center for the Performing Arts in Miami, Thursday, April 15, 2010.

U.S. President Barack Obama attends a DNC fundraiser ...
Reuters
U.S. President Barack Obama attends a DNC fundraiser at the Arsht Center for the Performing Arts in Miami, Florida April 15, 2010.
Barack Obama
AP
President Barack Obama speaks at a Democratic National Committee fundraiser at the Arsht Center for the Performing Arts in Miami, Thursday, April 15, 2010.
U.S. President Barack Obama attends the opening ...
Reuters
President Barack Obama attends the opening session of the Space Conference at NASA Operations and Checkout Building in Cape Canaveral, Florida, April 15, 2010.
U.S. President Barack Obama delivers remarks ...
Reuters

U.S. President Barack Obama delivers remarks at the opening session of the Space Conference at NASA Operations and Checkout Building in Cape Canaveral, Florida, April 15,

Barack Obama
AP
President Barack Obama speaks at Kennedy Space Center, Fla., Thursday, April 15, 2010.
Obama sets new course to conquer the final frontier
AFP
US President Barack Obama walks past a main engine of a space shuttle as he arrives to speak at Kennedy Space Center in Cape Canaveral, Florida. Obama said Thursday he is aiming to send US astronauts into Mars orbit in the mid-2030s as he sought to quell protests over his earlier space policies.
U.S. President Barack Obama delivers remarks ...
Reuters
U.S. President Barack Obama delivers remarks at the opening session of the Space Conference at NASA Operations and Checkout Building in Cape Canaveral, Florida, April 15, 2010.
Barack Obama
AP

President Barack Obama walks to the stage to speak at an operations and checkout building, Thursday, April 15, 2010, at Kennedy Space Center, Fla.

Barack Obama
AP

President Barack Obama shakes hands after speaking at Kennedy Space Center, Fla., Thursday, April 15, 2010.

Barack Obama
AP
President Barack Obama walks down the stairs of Air Force One as he arrives at Andrews Air Force Base, Md., Thursday, April 15, 2010.
Barack Obama, Kevin Stricklin, Hilda Solis, Joe ...
AP
President Barack Obama arrives in the Rose Garden of the White House in Washington, Thursday, April 15, 2010, to talk about mine safety. With him, from left are, Mine Safety and Health Administrator Kevin Stricklin; Labor Secretary Hilda Solis and Assistant Secretary of Labor for Mine Safety and Health Joe Main.
Barack Obama, Kevin Stricklin, Hilda Solis, Joe ...
AP

President Barack Obama delivers a statement on mine safety, Thursday, April 15, 2010, in the Rose Garden of the White House in Washington. Joining him, from left are, U.S. Mine Safety and Health Administrator Kevin Stricklin, Labor Secretary Hilda Solis, and United Mine Workers of America safety director Joe Main.

Barack Obama, Paul Volcker, Gary Locke, Joe Biden, ...
AP
President Barack Obama speaks during a meeting of the President’s Economic Recovery Advisory Board, Friday, April 16, 2010, in the Roosevelt Room of the White House in Washington. From second from left are, are Commerce Secretary Gary Locke, Vice President Joe Biden, the president, and White House adviser Paul Volcker.
Barack Obama
AP

President Barack Obama speaks at the White House Conference on America’s Great Outdoors, Friday, April 16, 2010, at the Interior Department in Washington.

Barack Obama, Lisa Jackson, Ken Salazar, Tom ...
AP

President Barack Obama signs a memorandum establishing the Great Outdoors Initiative, Friday, April 16, 2010, at the White House Conference on America’s Great Outdoors, at the Interior Department in Washington. Behind the president, from left are, Environmental Protection Agency Administrator Lisa Jackson, Interior Secretary Ken Salazar, and Agriculture Secretary Tom Vilsack.

Barack Obama, Reggie Love
AP
President Barack Obama walks with aide Reggie Love, to the Oval Office of the White House in Washington, Friday, April 16, 2010, after returning from the White House Conference on America’s Great Outdoors, at the Interior Department.
Barack Obama
AP
President Barack Obama walks into the Oval Office of the White House in Washington, Friday, April 16, 2010, after returning from the White House Conference on America’s Great Outdoors, at the Interior Department