Galileo is in prison. He tries one more time to prove his theories to his inquisitor. But he finally recants during the trial saying the famous sentence: "and yet... it turns"

In part seven of this episode on the ecosystems, the young students are on a field trip (a marsh trip to be exact), where they witness firsthand the destruction of this precious ecosystem. But this is not a new phenomenon: once upon a time in Polynesia...

In this episode on the ecosystems, guide Nam explains the importance of mangroves in the food chain. You'll also see the rafflesia, the largest flower in the world.

At Les Jardins de Sophia (Sophia's Gardens), a new, non-medicinal approach to treating Alzheimer's patients is giving hope to their families and being noticed by medical authorities.

It’s common to see photos of celebrities aged forty and up happily pregnant or pushing a pram. But according to most doctors, a woman’s chances of conceiving drop dramatically after age thirty-eight or so. Of course there are exceptions. Modern medical fertility treatments allowed a sixty-six-year-old Romanian woman to give birth to twins in 2005. But unless we’re willing and able to procure such treatments, which can be financially, emotionally, and physically draining, those who want to wait until their forties to have kids will have to take their chances.