[Washington, D.C., July 20. Image via Getty]

A woman poses with a replica of a moon outside the Newseum in Washington, DC, on July 20, 2009. As the world marked the 40th anniversary of the first lunar landing on July 20, astronauts urged Americans to take inspiration from the Apollo program and go back to the moon and beyond, to Mars. AFP PHOTO/Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)