Incredible Unknown Facts About our universe Our Universe Episode 5 - Water World

Leaving the islands and lush life of the Great Barrier Reef, this episode takes us to Botswana in the Okavango Delta to find a family of elephants seeking out water. Pondering their regular migration patterns based on a search for this fundamental molecule which makes up 70% of our planet, we explore how water ended up here in the first place. This is often a major revelation, that there is a lot of water in ice form throughout our Solar System, and delivery mechanisms in the form of comets and asteroids is a likely explanation for the distribution on Earth.