Implications of Life
Scientific Research and Design
Again, this experiment is based on the assumption that any life would metabolize our marked particles- in this case CO and CO2. Viking's results were negative, but again not entirely conclusive due to other possibilities.
Positive: Radioactive particles detected in soil after exposure. Life indicated.
Negative: No radioactive particles detected in soil after exposure. No metabolic activities detected.
False-Positive: Radioactive particles detected as result of carryover from incubation chamber. Chemical processes breaking down molecules at the great temperatures to which the soil is exposed in the experiment. Again to avoid these, we will be very selected in what soil we will sample.
© 2000 Massachusetts Institute of Technology
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