January 28, 1986
Atlantic Ocean, off the coast of Florida
The Challenger space shuttle suffers critical failure, rupturing a fuel tank and exploding in the atmosphere 1 minute and 13 seconds after launch
Pictured are the parents and sister of teacher Christa McAuliffe, who was aboard the Challenger as part of the NASA Teacher in Space Project, moments after the explosion. A concise documentary detailing the event can be seen at this link.