Chyba, C F <br/><br/>
Cometary delivery of organic molecules to the early Earth.  [electronic resource] 

 -  Science (New York, N.Y.)  Jul 1990 
 - 366-73 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0036-8075 
<br/><br/><label>Standard No.: </label>10.1126/science.11538074  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Amino Acids<br/>Atmosphere<br/>Biological Evolution<br/>Carbon Dioxide--analysis<br/>Chemistry, Organic<br/>Earth, Planet<br/>Formaldehyde<br/>Hot Temperature<br/>Hydrogen Cyanide<br/>Minor Planets<br/>Organic Chemistry Phenomena<br/>Origin of Life<br/>Solar System