Horizon

Episode 1

The Life and Times of El Niño

The massive fluctuations that El Nino causes in the world's weather systems have changed the course of history. Would these events have happened without the impact of El Nino?

Episode 2

Space Tourists

Episode 3

Waiting for a Heartbeat

Episode 4

A War on Science

Episode 5

The Lost City of New Orleans

Episode 6

Most of Our Universe Is Missing

Episode 7

Winning Gold in 2012

Episode 8

The Woman Who Thinks Like a Cow

Episode 9

The Genius Sperm Bank

Millionaire optometrist Robert Graham believed that many intellectuals were dying childless, yet less-intelligent people were constantly reproducing. He wanted to bring thousands of geniuses into the world to ensure the future of the human race. In the early 1980s, he established a Repository for Germinal Choice - a sperm bank stocked full of 'donations' solicited from some of the world's most brilliant men; and he began with Nobel Laureates. This is the story of an endeavor that many agree laid the foundations for modern sperm banks.

Episode 10

Bye Bye Planet Pluto

Episode 11

We Love Cigarettes

Episode 12

Nuclear Nightmares

Episode 13

Tutankhamun's Fireball

50 mins

The extraordinary story of how a mysterious gem in one of Tutankhamun's necklaces led to the discovery of a dramatic new cosmic threat.

Episode 14

Survivors Guide to Plane Crashes

49 mins

Episode 15

Chimps Are People Too

49 mins

Episode 16

The World's First Face Transplant

Episode 17

Human v2.0

48 mins

Episode 18

The Great Robot Race

Episode 19

Pandemic

89 mins

Episode 20

We Are the Aliens