A physics professor from Adelaide says he’s cracked a 70-year-old murder mystery. But the rest of the story is stranger than you might imagine.

In 1986, the city of Cleveland released 1.5 million balloons into the air. What could go wrong? A lot, it turns out.

Ever practised CPR on a mannequin? You’ve probably been breathing into the mouth of a dead woman.

That’s one small nuke for man. One giant nuke for mankind.

A "dollar" may be a little plain-sounding, but things could have been far, far worse.

Architect Oscar Newman devised a gigantic spherical nuclear shelter, built underground, below present-day New York.

How early cinema’s foley artists made movie magic.

Scientists say the 500-year-old ship dates back to the Renaissance. 

The first thing the Apollo 11 astronauts did when they returned from the moon 50 years ago wasn't attend a ticker tape parade or get checked for space madness. They filled out this customs form.