Apollo 11 astronauts planted a flag on the moon on July 20, 1969.

NASA

The last time a person visited the moon was in December 1972, during NASA's Apollo 17 mission. Astronauts say the reasons humans haven't returned are budgetary and political, not scientific or technical. It's possible NASA will be back on the moon by 2025, at the very earliest.

Landing 12 people on the moon remains one of NASA's greatest achievements, if not the greatest.

Astronauts collected rocks, took photos, performed

Continue Reading Astronauts explain why nobody has visited the moon in 50 years — and the reasons are depressing