New science reveals the inside story of the Apollo 13 disaster; using the latest evidence, experts explain what really went wrong and how NASA saved the lives of the three astronauts stranded in space in a life-or-death race against the clock.

Geologists and other experts examine the engineering decisions behind a catastrophic landslide that destroyed a small and once-thriving Greek village in Ropoto, sending dozens of homes and buildings crumbling down the picturesque mountainside.