A long human expedition to Mars would be impossible, if not impossible, according to a study published on August 7. The researchers raised the problem of radiation emitted by solar and cosmic rays, which would become lethal without the protection of the Earth’s atmosphere and jeopardize long-term colonization of the Red Planet.
Would the dream of a multiplanetary life end before it began? This is what suggestson the AGU website (Advancing Earth and space science). Scientists have looked into the possibility of a long-term mission to Mars, the presumed next step in man’s conquest of space. The results are not encouraging: an inhabited mission towards theoretically could not last more than four years. This limit arises from natural causes, namely radiation emitted by . After this period, the instruments used for the return of could be damaged and the explorers themselves would face serious health problems.
Radiation in space, a source of danger for humans
The study discerns two radiations that can pose constraints during an exploration on Mars: solar energy particles (Solar Energy Particles Where) projected during a or coronal mass ejection, or cosmic radiation (Galactic Cosmic Rays or GCR) originating from various interstellar sources such as the , or galactic nuclei. These two phenomena are high energy particle fluxes passing through the cosmos and the . These rays are said to be “ionizing”: they can cause a real breakage. , at the level of , passing through the body of a human being.
Outside of ourprotective and shield formed by the , there is no real solution to protect against increased reception of radiation passing through space. Theoretically, in the event of MS while traveling on the , , advising astronauts to hide in a reinforced shelter of Or other findable on Earth’s natural satellite. A sufficiently thick refuge could protect from a surplus of of cosmic radiation.
Cosmic radiation and the Martian problem
Mars is undoubtedly the next space utopia. Personalities, like, have never hidden their interest in , despite the call for restraint from scientists. In addition to the various logistical problems involved in a trip of this magnitude, cosmic radiation is added to the list of elements to be taken into account for future human expeditions to Mars. The mission should respond to constraints and contingencies to preserve the astronauts and equipment.
The launch of a crew to Mars is expected to take place during the solar maximum period, when thereaches its peak of activity, thus allowing , more dangerous than MS, to be repelled. It is estimated that a flight to Mars would take , the maximum lifespan on the planet would therefore be less than two years if the travel time is deducted. Because indeed, on site, the danger of cosmic radiation and MS would reach humans but also electronic components, causing failures and thus compromising the return journey.
For now, the exploration of Mars by astronauts remains in the scope of the project, the distant planet being already traversed byeffectively carrying out their missions. The would like to send the first human there by 2030. More optimistic, Elon Musk hopes to land a crew on Mars before 2028 thanks to his company SpaceX.