On this day: July 31

Posted: 11:36 PM EDT Jul 30, 2012   Updated: 2:00 AM EDT Jul 31, 2016
Apollo 15 Lunar Rover on moon, astronaut Jim Irwin

Mt. Fuji erupts, the Apollo 15 astronauts go for a ride, major-league baseball players end their strike, and Michael Phelps swims into Olympic history, all on this day.