The video is discussing the events of the tragic space shuttle Challenger failure of 1986. It goes over many details and is almost twenty nine minutes in length. The video goes into detail of the smoke patterns, and the debris and what the possible causes were for the tragic accident.
The cause of the accident was determined by a leak caused by a faulty design in a seal. It is a shame that so many lives were lost over such a small flaw. Let alone the amount of money wasted in this endeavor.