On this day in 1972, Apollo 16, commanded by John Young, landed on the moon.
On this day in 2010, an explosion on Deepwater Horizon, an offshore oil rig in the Gulf of Mexico, caused the largest accidental marine oil spill in the history of the petroleum industry.
On this day in 2013, a 6.6-magnitude earthquake strikes Lushan County, Ya'an, in China's Sichuan province, killing more than 150 people and injuring thousands.