History's Secrets

Maths whiz and child prodigy, Ted Kaczynski found academic glory at Harvard by the age of 16 but strange and dangerous stress tests he took here may have influenced his later rampage which killed 3.

24 astronauts ventured to the moon on a single engine with the Apollo missions. These are the untold stories of NASA's rarely-remembered breakthroughs, harrowing escapes and heartbreaking disasters.