Drugs perform minor miracles day after day, freeing us from pain and disease. Take a tour through the world of pharmaceuticals and find out that drug discovery has as much to do with serendipity as it does science.
Over the last few hundred years, humans have conquered animals that used to thrive in the wild. But a growing number of scientists are finding that in eliminating predators, we have damaged the environment. Their solution is simple, but terrifying.
This is the story of infinity - older than time, bigger than the universe and stranger than fiction. Once you learn to count, in theory you could go on counting forever, but instead you enter a paradoxical world where nothing is as it seems.
In a series of cutting-edge experiments and personal stories, Horizon goes in search of the science behind this most enduring mystery and ask: where do dreams come from? Do they have meaning? And ultimately, why do we dream?
They are the miracle pills that shouldn't really work at all. Placebos come in all shapes and sizes, but they contain no active ingredient, so how we could all benefit from the hidden power of the placebo?
We experience pain from the moment we are born until our dying breath. We spend our lives trying to escape it, yet it is essential for our very survival. Find out why some feel more pain than others, and meet the people who feel no pain at all.
For the first time in history, scientists will be able to observe the immense destructive power of a super-massive black hole. In so doing they hope to unlock some of the secrets of black holes, the most elusive objects in the universe.
Dogs have been domesticated for longer than any other animal and humans have developed a unique relationship with their furry friends. We treat our pets like a part of the family, often like children, but are we more like our pets than we realise?
From killer tornadoes to deadly floods and chilling freezes, the world's weather is becoming more extreme. Scientists now believe they could have identified a natural phenomenon behind it. Meet the scientists trying to unlock the secret.
What if dinosaurs hadn't become extinct? Would we eat them, farm them, love or fear them? Would we keep them as pets or have hunted them to extinction? Scientists think they can use established evolutionary theories to answer these questions.