Doctors Panayiotis Zavos and Severino Antinori claim they are ready to embark on the greatest human experiment of our age. They say they will attempt to clone a human being before the year is out. Most people think the objections to this are ethical - human cloning would create many moral dilemmas. There is another question that few ever ask: is the science actually ready yet for cloning healthy humans? Horizon follows the latest research, which has led many scientists to believe that Zavos and Antinori's plans to clone the first human could end in tragedy. The programme also meets couples like Matthew and Desir?e Racquer (above) who think cloning offers them the only way to raise a child who is truly their own. Dr Lorraine Young at the Roslin Institute laboratoriesFor decades, cloning remained within the realms of science fiction. The idea that instead of combining a sperm and an egg, a new human could be made from a single cell taken from an adult, seemed completely absurd. But that all changed in February 1997, when the Roslin Institute (right) introduced the world to Dolly the sheep - the first animal cloned from an adult. Ever since Dolly, scientists have been continuing to experiment with cloning animals. So far, they have succeeded in cloning sheep, cattle, pigs, goats and mice, fueling the belief that humans could be next.

Episode Viewers and Ratings

Season 37 Episode 14 of Horizon resulted in a 0.00 rating in the 18-49 demographic.

Horizon Season 37 Episodes...

• s37e01 - Life on Mars
• s37e02 - Destination Mars
• s37e03 - The Mystery of the Miami Circle
• s37e04 - The Missing Link
• s37e05 - Killer Algae
• s37e06 - Ecstasy and Agony
• s37e07 - Snowball Earth
• s37e08 - Taming the Problem Child
• s37e09 - What Sank the Kursk?
• s37e10 - The Mystery of the Persian Mummy
• s37e11 - The Ape That Took Over the World
• s37e12 - Life Blood
• s37e13 - The Death Star
• s37e14 - Cloning the First Human

Horizon Show Summary

Horizon is BBC Two's flagship 50-minute science documentary series.

Recognised as the world leader in its field, it regularly wins a sweep of international science, medical and environmental film accolades, and has recently won the Royal Television Society Award and the Prix Italia.

In 2002, the British Academy of Film & Television Arts presented Horizon with the BAFTA Television Award for Best Factual Series or Strand.

In 2003 it won the prestigious Images et Science award for best medical documentary and the Carl von Linne Award at the Living Europe film festival in Sweden. That year, a Horizon co-production with WGBH Boston won the Emmy for best documentary.

In September 2014 it celebrated its 50th anniversary and it continues to enjoy outstanding critical acclaim.