Archive for April, 1977

Red Planet (The)

Thursday, April 28th, 1977

NOVA traces 300 years of speculation, investigation and discovery that have centered on Mars—particularly the theory that the planet could support life. Questions raised by NASA’s 1976 Viking mariner missions about how the vast canyons were formed are also explored.

Business of Extinction (The)

Thursday, April 21st, 1977

NOVA explores the huge international illegal trade in animals, penetrates the thriving underworld of smugglers and assesses the effects on vanishing wildlife.

Dawn of the Solar Age (The)

Thursday, April 21st, 1977

Solar Energy
Solar energy is increasingly popular as a home heating source. But only recently has it been seriously considered as a source of industrial power. NOVA looks at this new industrial approach, such as the use of a huge windmill in Ohio, giant machines that may generate electricity from the heat of the tropical seas or from the motion of waves, and an orbiting solar power station able to beam microwaves to earth.