Undaunted: The Forgotten Giants of the Allegheny Observatory

Titolo originale: Undaunted: The Forgotten Giants of the Allegheny Observatory
Regia: Dan Handley |
Anno: 2012
Origine: United States of America |
Generi: Documentario
Tag: aviation | astronomy | observatory |
Cast: Cain Alexander | Kurt Bell | Robert R. Bell | Len Caric | David Conrad |