Nova

Season 4 Episode 4: The Sunspot Mystery

51 Seasons Feb 02, 1977 TV-PG 55m 7.8

Is the sun static or does it vary, and if it varies how does that affect the Earth and its climate? Studying sunspots and other solar phenomena may provide the answers.

Nova background

Season 4 Episodes:

Episode 3 What Price Coal?

3. What Price Coal?

Aired: Jan 19, 1977

What is the price we are prepared to pay for coal? NOVA looks at the environm...

Episode 4 The Sunspot Mystery

4. The Sunspot Mystery

Aired: Feb 2, 1977

Is the sun static or does it vary, and if it varies how does that affect the ...

Episode 5 The Plastic Prison

5. The Plastic Prison

Aired: Feb 9, 1977

NOVA follows the lives of three boys who have combined immuned deficiency—a d...

Episode 7 Bye Bye Blackbird

7. Bye Bye Blackbird

Aired: Mar 2, 1977

NOVA looks at blackbirds, their winter habit of nesting in the millions, and ...

Episode 9 The Gene Engineers

9. The Gene Engineers

Aired: Mar 16, 1977

NOVA explores the history of genetic engineering and the possible risks and b...

Episode 10 The Human Animal

10. The Human Animal

Aired: Mar 23, 1977

NOVA investigates the controversial theory of Harvard University biologist E....

Episode 11 The Wolf Equation

11. The Wolf Equation

Aired: Mar 30, 1977

In the winter of 1976-77, 80 percent of the wolf population in Northwest Alas...

Episode 14 The Red Planet

14. The Red Planet

Aired: Apr 27, 1977

NOVA traces 300 years of speculation, investigation and discovery that have c...

Episode 19 The New Healers

19. The New Healers

Aired: Jun 29, 1977

NOVA explores the delibitating diseases that are often caused by poverty and ...


Info about Nova

Current Status: Returning Series

Network: PBS

Genres: Documentary