Leading Mars Underground member: Chris McKay Credit: NASA

Leading Mars Underground member: Chris McKay
Credit: NASA

The question of whether life has ever existed on Mars has been at the center of a 50-year robotic exploration campaign that has seen an increasingly sophisticated armada of flyby missions, orbiters, landers and rovers dispatched to the red planet.

Christopher McKay, one of NASA’s most recognizable names in the field of astrobiology, argues that Mars probes to date have, quite literally, barely scratched the surface.

Check out my revealing SpaceNews profile of McKay’s views: “Drill Baby, Drill” at:

http://spacenews.com/qa-with-chris-mckay-senior-scientist-at-nasa-ames-research-center/

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