The story of how more than 220 dinosaur bones were found in the Argentinean desert, which were found to have come from a previously undiscovered species, which is the largest land dwelling animal known to have existed. David Attenborough visits the archaeological dig and a laboratory where the remains are being cleaned and analysed with lead scientist Dr Diego Pol and evolutionary biologist Ben Garrod, and meets animators, model-makers, paleontologists and anatomy experts who are working to reconstruct what the 37 metre-long creature would have looked like.
Space. It separates you from me, one galaxy from the next, and atoms from one another. It is everywhere in the universe. But to most of us, space is nothing, an empty void. Well, it turns out space is not what it seems. From the passenger seat of a New York cab driving near the speed of light, to a pool hall where billiard tables do fantastical things, Brian Greene reveals space as a dynamic fabric that can stretch, twist, warp, and ripple under the influence of gravity.
Horizon discovers what your cat really gets up to when it leaves the cat flap. In a groundbreaking experiment, 50 cats from a village in Surrey are tagged with GPS collars and their every movement is recorded, day and night, as they hunt in our backyards and patrol the garden fences and hedgerows. Cats are fitted with specially developed cat-cams which reveal their unique view of our world. You may think you understand your pet, but their secret life is more surprising than we thought.