President Dmitry Medvedev (left) and Prime Minister Vladimir Putin walk after a wreath-laying ceremony at the Tomb of the Unknown Soldier outside Moscow's Kremlin Wall.
American astronaut Leroy Chiao gives a thumbs up during the ride from a suit-up facility in Kazakhstan in 2004. The mission took Chiao to the International Space Station and was his last trip into space before retiring in 2005.
Police officers stand next to a hole they say was used as a mass grave near San Fernando in the Mexican state of Tamaulipas in late April. Almost 200 bodies were found that month in Tamaulipas. Prosecutors believe the killings were carried out by members of the Zetas drug cartel.
In September 2008, then-Sen. Barack Obama disembarks from his campaign plane in Reno. Mayor Bob Cashell says presidential candidates should spend a little more face time in his town.
Emmanuel Dunand/AFP/Getty Images
Eve offers Adam the fruit in the garden of Eden in Theatrum Biblicum, a drawing by Johann Fischen (circa 1650). Sex lets a species evolve faster to rapidly adapt to a new environment, researchers say.
Hulton Archive/Getty Images