Humans Will Absorb Staggering Amounts Of Radiation On Mars

Posted: Sep 23 2018, 5:38pm CDT | by , Updated: Sep 23 2018, 5:51pm CDT , in Latest Science News


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Humans will Absorb Staggering Amounts of Radiation on Mars
Credit: ESA

ExoMars data suggest that an astronaut could be exposed to at least 60% of the total radiation dose limit recommended for their career during a long-term mission to Mars.

Using data from ExoMars mission, researchers have quantified radiation hazards on Mars. The data suggests that astronauts on Mars would be exposed to at least 60% of the total radiation dose limit recommended for their entire career during a long-term mission to the planet. Crewed missions to Mars is an essential part of many space agencies’ exploration program and radiation is an important environmental factor for space travel. It must be carefully studied for the future missions to Red Planet.

“One of the basic factors in planning and designing a long-duration crewed mission to Mars is consideration of the radiation risk. Radiation doses accumulated by astronauts in interplanetary space would be several hundred times larger than the doses accumulated by humans over the same time period on Earth, and several times larger than the doses of astronauts and cosmonauts working on the International Space Station. Our results show that the journey itself would provide very significant exposure for the astronauts to radiation.” Jordanka Semkova, lead scientist of the Liulin-MO instrument, said. Liulin-MO is a dosimeter attached to ESA-Roscosmos ExoMars Trace Gas Orbiter. The instrument is responsible for recording radiation doses during the orbiter's six-month interplanetary cruise to Mars.

The space environment always poses significant risks to human health as astronauts traveling to space constantly receive harmful radiation. On Earth, magnetic field protect us from this radiation and charged particles. However, Mars has no protective shield like Earth’s magnetic field, so its surface is directly bombarded by cosmic rays.

ExoMars’ Liulin-MO dosimeter is providing valuable data to help researchers study and quantify radiation hazard. The instrument has been collecting data since launch in 2016. The data represent one-year journey to and from the Red Planet and it will be crucial in developing techniques for protecting against space radiation.

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<a href="/latest_stories/all/all/47" rel="author">Hira Bashir</a>
The latest discoveries in science are the passion of Hira Bashir (). With years of experience, she is able to spot the most interesting new achievements of scientists around the world and cover them in easy to understand reporting.




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