President Barack Obama, Michelle Obama and Vice President Joe Biden watch as the NASA Lunar Electric Rover stops in front of the Presidential reviewing stand on Pennsylvania Avenue in front of the White House in Washington, Tuesday, Jan. 20, 2009.
President Barack Obama, Michelle Obama and Vice President Joe Biden watch as the NASA Lunar Electric Rover stops in front of the Presidential reviewing stand on Pennsylvania Avenue in front of the White House in Washington, Tuesday, Jan. 20, 2009.Image Credit: NASA/Bill Ingalls