Exploration-class missions will expose astronauts to various types of radiation. On missions beyond low Earth orbit (LEO), radiation exposures from bursts of solar radiation, called solar particle events, could impair an astronaut's performance and result in mission failure. Acute health problems can include nausea, vomiting, fatigue, skin injury and changes to white blood cell counts and the immune system. Space travel beyond LEO is also associated with exposure to galactic cosmic rays, which may lead to long-term radiation effects such as damage to the cardiovascular system, eyes, and central nervous system. Exposure to space radiation may also increase cancer risk.
The Radiation Effects (RE) Team is focused on understanding and mitigating the risks related to exposure to various types of space radiation. The NSBRI Center for Space Radiation Research (CSRR) is the central component of the Team with multiple projects addressing the effects of exposure from both solar particle events and galactic cosmic rays and better defining the risks to astronaut crew members.
The CSRR, along with other RE projects, are identifying and validating possible countermeasures to prevent and mitigate the adverse health effects of space radiation. For example, EnteradeTM is being tested as a possible countermeasure to ameliorate the acute effects of space-like radiation exposures.
This research will have benefits for medical treatment and could be used for threat detection by agencies such as the Department of Homeland Security.
Marjan Boerma, Ph.D.
University of Arkansas for Medical Sciences
Associate Team Leader:
Xiao Wen (Vivien) Mao, M.D.
Loma Linda University