Two years ago, one of the world's most respected journals was led to believe it had discovered proof of a controversial theory: a half-bird, half-dinosaur fossible. But all was not what it seemed. Show more

The discovery of a dinosaur graveyard in Patagonia may resolve previously unanswered questions about dinosaur evolution; particularly the Mid-Jurassic period, when they developed into giants. Show more

The story of two scientists who each claimed they could predict volcanic eruptions. When their different methods clashed over one particular volcano, reputations were shattered and lives destroyed. Show more

Can an ancient fossilised skull named 'Flat-Faced Man', recently unearthed by Dr Meave Leakey in Kenya, overturn traditional theories of human evolution? Show more

Horizon investigates hypernovas, the explosive deaths of massive stars twenty times the size of the Sun. These violent blasts may help explain how the very first stars were made Show more