The Nature of Britain
Join Alan Titchmarsh on his epic journey to explore the huge diversity of British wildlife. Wed 9pm BBC One, rpt Sun 6.10pm BBC Two
Prehistoric puzzle
Can you solve the Baryonyx mystery? Weigh up the video evidence to uncover the truth behind this strange dinosaur. Could this be T. rex's footprint?
Sputnik
It's been fifty years since the Soviets launched the Space Age with Sputnik – the first satellite in orbit.
Deep asleep...
...or maybe just dreaming. Tune your rest to your body's rhythms with the sleep profiler.
