Air date: 1990-01-08

Runtime: 60 min

After the Exxon Valdez oil spill in 1989, Horizon looks at tanker design and the technology used for dealing with major oil slicks.

Air date: 1990-01-15

Runtime: 60 min

Horizon reports on medical developments in Britain which could mean by the year 2000, health care will be very different.

Air date: 1990-01-22

Runtime: 60 min

Horizon examines the history of research into irradiated food.

Air date: 1990-01-29

Runtime: 60 min

In this Horizon documentary, we look at how NASA launched the Voyager space probes to explore the planets of the outer solar system.

Air date: 1990-02-05

Runtime: 60 min

This report by Horizon presents the Voyager space probe close up encounter with the planet Neptune.

Air date: 1990-02-12

Runtime: 60 min

Horizon looks at the potential implications of genetically engineering plants.

Air date: 1990-02-19

Runtime: 60 min

Horizon brings you a documentary on embryology - the branch of biology that studies the formation and early development of living organisms from the moment of conception.

Air date: 1990-03-05

Runtime: 60 min

Horizon reports on how America has chosen to bury all of its most lethal radioactive waste under Yucca mountain in the state of Nevada.

Air date: 1990-03-12

Runtime: 60 min

Horizon explores the inside of Hurricane Gilbert as it neared Jamaica on a direct course for the United States.

Air date: 1990-03-19

Runtime: 60 min

Horizon investigates how British scientists have begun to experiment to predict the effects of a changing climate from Greenhouse gases.

Air date: 1990-03-26

Runtime: 60 min

This story by Horizon investigates cold fusion

Air date: 1990-04-02

Runtime: 60 min

Horizon presents the real story of seismic neglect and the failure of the San Francisco city government to protect its citizens.

Air date: 1990-04-09

Runtime: 60 min

In this episode, Horizon looks at the Hubble space telescope, hailed as the greatest advance in astronomy since Galileo.

Air date: 1990-04-23

Runtime: 60 min

What can we learn from insects? Professor James Gould explains on Horizon that the human society may be able to predict their own future based on the society structure of ants and bees.

Air date: 1990-04-30

Runtime: 60 min

This Horizon documentary looks at the radical transformations in the Singapore society as its technology extends into monitoring, logging, and linking up all businesses, information, and aspects of life on computer systems. The country's ultimate plan is to link the entire population electronically through the world's most advanced videotext system called Teleview. The report raises the question of what type of society this may create and also the political implications of such a system.

Air date: 1990-05-14

Runtime: 60 min

Horizon looks at the area around Mt. St. Helens 10 years after the volcanic eruption that devastated more 500 square kilometres of forest land in just minutes.

Air date: 1990-05-21

Runtime: 60 min

This episode of Horizon is about BSE transmitted in cattle feed and causing the fatal Creutzfeldt-Jakob syndrome in humans.

Air date: 1990-06-04

Runtime: 60 min

Horizon investigates how teenage pregnancy is now posing massive health and social problems in many societies.

Air date: 1990-06-11

Runtime: 60 min

Horizon examines the possibility of scientists, either intentionally or unintentionally, creating living forms which could enjoy an independent existence, initially confined to computers and telephone networks, and in the form of computer viruses.

Air date: 1990-06-25

Runtime: 60 min

Horizon investigates new breakthroughs in the scientific study, analysis, and reproduction of cells and their compounds, which may lead to the development of a cure for the AIDS virus.