Season 1, Episode 10
According to scientists, activity on the surface of our Sun is ramping up. This activity increases the risk of massive storms of plasma. But what are solar storms, what will they mean for us and our planet - and what can we do to lessen their impact?
Season 1, Episode 9
Many scientists had assumed that humans stopped evolving when we started insulating ourselves from the whims of nature. But not only have humans continued to evolve, we may have been evolving more quickly than at any time in our history.
Season 1, Episode 6
What came before the Big Bang? It's the science question people most want answered. Horizon takes an incredible journey through mind-bending theories into the land before time.
Season 1, Episode 1
How do we really know what time it is? Professor Brian Cox goes in search of the answer. From our historical dictator of time, the Sun, to the physical definition of a second by an atomic clock, Brian discovers telling the time is a tricky business.
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