Space

All life on Earth, including humans, comes from outer space - every single molecule of our bodies originated from an unimaginably large hydrogen cloud created by the Big Bang - and there are even serious claims that life was carried to earth by meteors.

Sam Neill takes us on a rollercoaster ride through the galaxy to discover how disasters in space regularly threaten our entire world. We go back to the very earliest days of our planet to see why we are lucky life ever got started, and we learn just what will happen if a massive asteroid ends up on a collision course with Earth.

Black Holes are the Universe's ultimate monsters, sucking everything into their super-dense centres. There are an estimated ten million of these cosmic killers in our galaxy and once created they never die. What are the chances of Earth having a fatal encounter?