Life in Our Universe.  Episode 24,  The Search for Another Earth. 

 - 1 online resource (streaming video file) (36 minutes):  digital, .flv file, sound 
<br/><br/> Title from title frames.  Film  In Process Record. 
<br/><br/>Laird Close 
<br/><br/> Originally produced by The Great Courses in 2013. 
<br/><br/> Now that you've seen why humanity will eventually have to leave Earth, consider astronomers' next steps, challenges, and planned missions. Examine why specialized optical systems called coronagraphs are necessary to detect habitable Earths, and how the use of direct imaging spectra is crucial to identifying whether the biomarkers of life are present on other worlds. 
<br/><br/><br/>Mode of access: World Wide Web. 
<br/><br/><br/>In English 
<br/><br/><label>Publisher. No.: </label>6756938  Kanopy 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Education films.