When did NOVA Season 13 Episode 21 air?
NOVA Season 13 Episode 21 aired on January 13, 1987 at 9 PM ET.


PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.
NOVA explores the ground-breaking experiments that led to the discovery of a tiny sequence of molecules—and more clues to the mystery of how a complete baby develops from a single cell.
Direct answers for episode-level questions and details.
NOVA Season 13 Episode 21 aired on January 13, 1987 at 9 PM ET.
This episode runs for approximately 55 minutes.
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