Founded in 1824, the Royal National Lifeboat Institution provided the British Isles with a standing organization of trained volunteers ready and willing to save those in peril in the surrounding waters on a moment's notice.

The images were striking - the faint outline in the marshland of the Everglades where a DC-9 struck the ground, killing all 110 people on board. But what killed all those people within only minutes of takeoff from Miami?

You're working down in the mine several hundred feet below the surface when you start to smell smoke. It's growing thicker with every passing minute, and it's coming from between you and the only way out of the mine. 

In our first commercial disaster, it was supposed to be the first Tumblr convention, a safe place for fans to share their joy in things like Sherlock, Welcome to Night Vale, anime, and other interests. But what was supposed to be a good time ended up being a prolonged dumpster fire, complete with a bouncy house and a ball pit.

It was the last night of the Route 91 Harvest Festival and people were eager to see country star Jason Aldean take the stage. Twenty-five minutes into his performance, he stepped up to the mike ... only to make a run for it off the stage. Soon, everyone else in the audience would be running for cover as well.

It was one of the most respected ships on the sea, a luxurious way to travel from Canada to Europe. But one foggy night was all it would take to send the Empress of Ireland to the bottom of the St. Lawrence River in a mere fourteen minutes.

Would the United States and the Soviet Union nuke each other out of existence? In the 1980s, no one could be sure. So in 1982, a little girl named Samantha Smith just went ahead and asked -- the leader of the Soviet Union, that is.

In this final episode of our Chernobyl series, we look at how Pripyat has fared in the years since it was evacuated, among other things.

In the penultimate episode of our Chernobyl series, we look at the investigation into the causes of the accident and the failures behind the scenes which led to the disaster.

The break is over and it's back to Chernobyl, where everything is covered with radioactive dust and the remains of reactor #4 are a continuing danger to everyone - both in the immediate vicinity, and quite possibly to all of those in western Europe.