What is the size of the experiment?
In order to fit have as little impact upon the Phobos sample return mission, and to fit within the sample return capsule (note that it will not be in the actual canister containing Phobos samples for return), the outer envelope will be 56 mm in diameter with a maximum thickness of 18 mm. Mass will be 100 grams or less for the entire bio-module. The current design is a short cylinder, looking much like a hockey puck, but smaller.
