Wed 1/21/15 Hr 4 JBS: Monica Crowley, Fox, & Washington Times Online opinion editor. Dr. David H Grinspoon, Astrobiology chair, Library of Congress; astrobiology curator, Denver Museum of Nature & Science. Gene Marks, WhashingtonPost.com.

Summary: Wed 1/21/15 Hr 4 JBS: Monica Crowley, Fox, & Washington Times Online opinion editor. Dr. David H Grinspoon, Astrobiology chair, Library of Congress; astrobiology curator, Denver Museum of Nature & Science. Gene Marks, WhashingtonPost.com.

Wed 1/21/15 Hr 4 JBS: Monica Crowley, Fox, &amp; Washington Times Online opinion editor. Dr. David H Grinspoon, Astrobiology chair, Library of Congress; astrobiology curator, Denver Museum of Nature &amp; Science. Gene Marks, WhashingtonPost.com.

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Wed 1/21/15 Hr 4 JBS: Monica Crowley, Fox, & Washington Times Online opinion editor. Dr. David H Grinspoon, Astrobiology chair, Library of Congress; astrobiology curator, Denver Museum of Nature & Science. Gene Marks, WhashingtonPost.com.