Wikipedia article of the day for March 13, 2019

The Wikipedia article of the day for March 13, 2019 is Apollo 15 postal covers incident.
The Apollo 15 postal covers incident was a scandal involving the crew of NASA's Apollo 15 lunar landing mission, who in 1971 carried about 400 unauthorized postal covers (example pictured) to the Moon's surface. American astronauts David Scott, Alfred Worden and James Irwin agreed to receive about $7,000 each for carrying the covers into space. These covers were inside the lunar lander Falcon as Scott and Irwin walked on the Moon, and were postmarked both prior to liftoff from Kennedy Space Center and after splashdown. Though the astronauts returned the money, they were reprimanded by NASA for poor judgment and were called before a closed session of a Senate committee. They were removed as the backup crew for Apollo 17 and never flew in space again; by 1977 all had left NASA. In 1983, Worden sued for the return of those covers that had been impounded in 1972, and the three men received them in an out-of-court settlement. One of the covers that had been provided to West German stamp dealer Hermann Sieger sold for over $50,000 in 2014.