Nemesis: The Sun's Evil Twin (S06E02)

Could there be a sinister, undiscovered star orbiting our own Sun, lurking at the edges of the Solar System? Could it be scattering killer comets through our system like clockwork every 26 million years? New scientific surveys are probing the unknown reaches just beyond our Solar System - a realm populated by giant worlds and mysterious planetoids - hunting for Nemesis, the Sun’s purported ‘evil twin’. Scientists may be on the verge of discovering this mysterious star, suspected of causing every mass extinction event in Earth’s history. In this stunning 3D special, experts employ everyday experiences to explain the Nemesis phenomenon, and why it has so far eluded discovery. From a bushfire on dry California hillside to a NASCAR race, discover how the effect of Nemesis impacts our planet and why life on Earth may in fact depend on it. (Beyond Home Entertainment)