GEMGCR
GEnetic Mutations due to Galactic Cosmic Rays
Project Overview
GEM GCR (GEnetic Mutations due to Galactic Cosmic Rays) is a research project that aims to study the effects of cosmic radiation on human DNA.
The project seeks to detect and quantify mutation rates in human genes exposed to galactic and solar cosmic rays, using a sentinel gene system, i.e. detecting mutations via proxy rather than examining the genes themselves; this being an new approach not yet studied thoroughly the aerospace field.
The experiment will be conducted through a stratospheric balloon flight, where cell culture samples will be launched into the stratosphere and be exposed to cosmic radiation levels that mimic those experienced beyond Earth’s atmosphere.
If completed successfully, the technique could be implemented into the system of safety measures that are already in place to protect humans during long-term space flight.
To keep the cell cultures alive during flight, they are stored in a custom habitat which is constructed with specific subsystems.
Electronics and Thermal Control System
This subsystem is responsible for monitoring cell cultures and maintaining optimal environmental conditions throughout the flight.
Using an array of temperature sensors and heating elements, the thermal control system regulates the habitat to ensure cell viability in the extreme stratospheric environment.
An onboard control unit, managed through a custom electronics board, ensures precise feedback regulation and data acquisition from all critical sensors.
Telecomunication
The telecommunications subsystem provides a real-time data link between the payload and the ground station.
It continuously transmits environmental data,including temperature,humidity,and pressure,
allowing mission control to monitor.
Structures and Environment
The structural subsystem houses the biological samples and all other components in a lightweight, thermally insulated, and airtight housing.
It maintains a stable internal atmosphere, shielding the cells from extreme pressures and temperatures.
The structure is designed to withstand the mechanical stresses of launch, ascent, and recovery, while ensuring thermal efficiency and biological safety.
Refeeding Mechanism
A key innovation of GEM GCR, the autonomous refeeding mechanism allows the system to refresh the cell culture medium during the mission.
This ensures that the cell cultures remain viable for extended periods, enabling long-duration flight without manual intervention.
