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This NOVA article presents an interview with NASA planetary scientist Christopher McKay concerning the possibility that life has existed on Mars. The interview covers all the requirements for life, and whether they were met on Mars in the past. The discussion is accessible for general audiences.
%0 Electronic Source %D 2008 %T Does Mars Have Life? %I WGBH Educational Foundation %V 2016 %N 29 July 2016 %9 text/html %U http://www.pbs.org/wgbh/nova/space/does-mars-have-life.html
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