From the article > Planetary protection against "backward contamination" ensures that the Earth's biosphere is not adversely affected by the return of potentia

From the article > Planetary protection against "backward contamination" ensures that the Earth's biosphere is not adversely affected by the return of potentially hazardous microbes. Interesting implications no? Here's a direct link to the PDF. https://www.whitehouse.gov/wp-content/uploads/2020/12/National-Strategy-for-Planetary-Protection.pdf https://www.whitehouse.gov/wp-content/uploads/2020/12/Nation...