Science, Maths & Technology
Planetary Protection of Mars
...type of mission (whether it is a flyby, orbiter or lander) as part of the Policy on Planetary Protection, which also outlines the bioburden it can carry. Orbiting spacecraft, such as ExoMars Trace Gas Orbiter, are Category III (the lowest category of mission is Category I), requiring less than 5 x 105 bacteria spores be carried by the spacecraft. Although these types of...