When did NOVA Season 36 Episode 10 air?
NOVA Season 36 Episode 10 aired on January 27, 2009 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.

Orange-and-black wings fill the sky as NOVA charts one of nature's most remarkable phenomena: the epic migration of monarch butterflies across North America. To capture a butterfly's point of view, NOVA’s filmmakers used a helicopter, ultralight, and hot-air balloon for aerial views along the transcontinental route. This wondrous annual migration, which scientists are just beginning to fathom, is an endangered phenomenon that could dwindle to insignificance if the giant firs that the butterflies cling to during the winter disappear.
Direct answers for episode-level questions and details.
NOVA Season 36 Episode 10 aired on January 27, 2009 at 9 PM ET.
This episode runs for approximately 55 minutes.
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