NASA deep space research cosmic radiation response

NASA at Colorado State University to establish a research center space radiation, to study how to deal with the harm caused by cosmic radiation on astronauts.

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Mars mission will last about three years, astronauts in interplanetary space flight for a long time, the degree of risk far beyond low-Earth orbit

 

According to foreign media reports, the NASA Mars program in the 2030s found that the implementation of the astronauts will encounter difficult problems to Mars, where the galactic cosmic radiation is one of the most deadly factors, exposure in interplanetary space more time long, then the threat level will be. Spacecraft or spacesuit almost no ability to shield high-energy cosmic rays, which means that these rays penetrate the spacecraft, and affect astronauts. Not long ago, an experiment suggests that galactic cosmic rays can cause astronauts dementia, memory loss, resulting in failure of the Mars mission, the astronauts return to Earth after a possible increased risk of cancer.

Researchers from Colorado State University, the impact of space radiation on the human body were studied here have space for a manned Mars landing preparation of radiation research facility, NASA provided millions of dollars for space radiation research. In fact, NASA has three specific issues of space radiation research center, the main research base in Colorado long-term exposure to low doses of high-energy galactic cosmic radiation environment, more than a year for the Mars mission.Professor of Environmental and Radiological Health Sciences at Colorado State University, Michael – Vail think our job is to protect the astronauts are not exposed to deadly cosmic radiation, radiation protection measures have failed once, the astronauts will increase 3% incidence of cancer.

Colorado currently testing center for a five-year project, the existing gamma ray equipment upgrades, to provide a low dose of neutron radiation impact assessments for researchers. Mars mission will last about three years, astronauts in interplanetary space flight for a long time, the degree of risk far beyond low Earth orbit, after all orbital altitude of the International Space Station is still under the protection of Earth’s magnetic field, galactic cosmic rays on the space station impact is still very limited.

NASA before performing radiation shielding measures need to understand the health effects of space radiation mechanisms, such as how to increase the risk of cancer, how to reduce the radiation dose astronauts are. To better understand the molecular biology of performance under radiation environment, the underground laboratory was transformed into a low-dose neutron irradiation laboratory, the mice for up to over 400 days of a low dose of neutron radiation exposure. The current study found that the contribution of cosmic radiation and background radiation on Earth almost leukemia, but is likely to cause liver cancer.

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