Planetary protection for a Mars sample return: Difference between revisions
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=== Concerns with integrity of the sample container === |
=== Concerns with integrity of the sample container === |
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The 2010 ESF report<ref name=esf2012_PP-capsule-breach>{{cite report |title=Mars Sample Return backward contamination - strategic advice |publisher= European Science Foundation |year=2012 |chapter=4.7 Potential verification methods"| |
The 2010 ESF report<ref name=esf2012_PP-capsule-breach>{{cite report |title=Mars Sample Return backward contamination - strategic advice |publisher= European Science Foundation |year=2012 |chapter=4.7 Potential verification methods"|url=https://science.nasa.gov/science-pink/s3fs-public/atoms/files/ESF_Mars_Sample_Return_backward_contamination_study.pdf}} |
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{{bq|Release due to failure of containment |
{{bq|Release due to failure of containment or of the spacecraft surface sterilisation |
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or of the spacecraft surface sterilisation |
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For there to be a risk, as opposed to a hazard, |
For there to be a risk, as opposed to a hazard, |
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there must exist an event that would initiate an |
there must exist an event that would initiate an |
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ways for an environmental exposure to be initiated |
ways for an environmental exposure to be initiated |
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from the accidental/deliberate release a Mars sample into the Earth’s biosphere: |
from the accidental/deliberate release a Mars sample into the Earth’s biosphere: |
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• A break-up of the container during atmospheric |
• A break-up of the container during atmospheric |
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entry (due to a design fault or sabotage), |
entry (due to a design fault or sabotage), |
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• Escape of material during transport or from the |
• Escape of material during transport or from the |
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laboratory. |
laboratory. |
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In the first and (possibly) second cases, there is |
In the first and (possibly) second cases, there is |
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potential for contamination over a quite wide area |
potential for contamination over a quite wide area |
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