![](https://webarchive.library.unt.edu/eot2008/20090813211001im_/http://astrobiology.nasa.gov/img/_placehold/placehold-ask.jpg)
![Ask an Astrobiologist](https://webarchive.library.unt.edu/eot2008/20090813211001im_/http://astrobiology.nasa.gov/img/text/ask-an-astrobiologist.gif)
"What scientific instruments on board space craft could be used to examine if a planet, or moon could sustain life and how would they do it? "
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Viking Project
External Link: Viking 1 & 2
January 18, 2008
Related Articles
![Current Missions](https://webarchive.library.unt.edu/eot2008/20090813211001im_/http://astrobiology.nasa.gov/img/text/hd_current_missions.gif)
![Past Missions](https://webarchive.library.unt.edu/eot2008/20090813211001im_/http://astrobiology.nasa.gov/img/text/hd_past_missions.gif)
External Link: Viking 1 & 2