In 1543, a diagram drawn by a Polish priest revealed to the world a new idea, which forever changed our understanding of the cosmos and our place in it; the concept of a sun-centric universe. A plaque was put aboard the unmanned Pioneer space probe in 1972 to communicate fundamental facts about Earth and its inhabitants to life on other planets. How did a single diagram fit everything in?
Join Brian Cox on a journey into the furthest edge of our solar system to study the ice giants, Uranus and Neptune.
Are the wealthy just born in the right place at the right time? Are the poor victims of a system designed to keep them down? Or do physics and biology determine who is rich and who is poor?
Mkhaya, the youngest baby elephant in the Safari Park, learns to use her trunk. Will Alba the Andean bear become a first-time mum? Vets examine Mandazzi the gorilla. Jeff looks for a coastal patch nose snake.
Sharks are more than just hunters. Only now are discoveries revealing a hidden side to their character. They have an intricate social life, complex courtship rituals, surprising ways of bringing up their young, and extraordinary powers of navigation. They can forge relationships with the strangest of partners, even us! This is the secret life, of the shark.
Safari Park keepers say goodbye to two elephant brothers. Can the zoo vets design a custom shoe for Felix, an excitable three-toed Baird's Tapir? Two African penguin chicks grow up and join the colony.
A rescued sea otter must build his independence after becoming too attached to his best friend; over 50 African penguins are moved for spring cleaning.
Astronaut Eugene Cernan discusses his two missions to the Moon, and what he loved and lost in the process.
Shepard's indiscretion leads to a wedge between Glenn and the astronauts, ultimately determining who among them will be the first man in space.
James visits the Andes to discover how a potato helps inhabitants survive the altitude.
Myth-busting meets natural history with Tim Warwood and Adam Gendle.
Trainers prepare rescued sea lions for eye surgery; the team travels to the Bahamas to collect blood samples from native sharks; staff devise new enrichment for giant octopus Ophelia.
A southern sea otter is rushed to the health centre; the team help coral restoration efforts; young African penguins prepare for an upcoming event.
Do you make your own luck, or does luck make you? Some scientists believe luck is strictly a matter of statistics and probabilities, but others believe unseen forces are at work.
The zoo says goodbye to beloved pandas Bai-Yun and Xiao Liwu, as mother and cub prepare to return to China; Tembo the retired "Hollywood" elephant tries traditional Chinese medicine for her arthritis.
Anatomist Dr Alice Roberts follows a dinosaur exhibit from raw bones to colossal models.
After devouring all his tankmate's food, a hungry sea turtle finds a space to eat in peace; two beluga whales are welcomed to their new home.
The Coral Triangle contains more than three quarters of the planet's coral species, and the world's largest and smallest fish.
As 1960 approaches and the Mercury 7 return home for the holidays, a humiliating rocket launch throws the future of NASA into question.
Michael Mosley tries the first meal most of us enjoyed - human breast milk.
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