Undaunted: The Forgotten Giants of the Allegheny Observatory
- Afọ: 2012
- Mba: United States of America
- Dị: Documentary
- .Lọ nka:
- Isiokwu: aviation, astronomy, observatory
- Onyeisi: Dan Handley
- Nkedo: Cain Alexander, Kurt Bell, Robert R. Bell, Len Caric, David Conrad
