NASA :   unexplained files / 
Discovery Channel Firm 
 - [Place of publicaction not identified] :   [publisher not identified], Silver Spring, MD : distributed by Discovery Channel,   c2014.  
 - 1 videodisc  sound, color ;  4 3/4 in. 
 - runnig time 219 min. 
<br/><br/> Title from container.<br/>Originally aired in 2001-2012. 
<br/><br/> Mysterious flying objects, unexplained disappearances, species invasions: a swirl of suspicion has circled our planet for decades, but few definitive answers have been offered. This collection combs through three and a half hours of evidence, interviews, and theories that attempt to explain the unexplained. From astronauts to abductees, a variety of sources submit film footage and firsthand testimonies to be examined in search for the truth. in our search, we will asked difficult questions provide extensive evidence. 
<br/><br/> Rating: TVPG. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Space flight --history
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History--National Aeronautics and Space Administration
<br/><br/><label>Dewey Class. No.: </label>AV 629.41 N241 2014