ROAD TO MARS?

Researchers in USA have discovered that astronauts who are going to be sent to Mars, could suffer brain damages like elevated anxiety, memory deficits and loss of awareness. NASA researchers exposed mice at energy levels similar to those found in cosmic galactic rays. This confirmed that rays make damages in the animal’s nervous system.

Mars One group is planning a mission to the Red Planet in the 20’s, but researchers of Massachusetts Institute of Technology (MIT) have said that they disagree because there are not enough technologies to keep astronauts alive there.

Mars One project.

Mars One project

NASA’s mice were put in a sheet with oxygen and titanium at high levels of energy like in the outer space. This exposition let mice with a brain inflammation which affected in how signals travel through theirs neurons.

Six weeks later, the animals had fewer dendritic synapses, which are used for transmit electrochemical signals. Particles which mice were exposed at, hit the dendritic synapses, so similar effects of neurodegenerative diseases like Alzheimer appeared.

Next step of the experiment was the mice introduction in closed spaces with toys. When researchers changed toy’s position, affected mice were easily distracted. Data shown us the probability of develop brain deficits after a radioactive exposition. This damages could be seen after a long time, but its appearance is inevitable in a long mission.

Behavioral deficits measured 6 weeks after charged particle exposure

Behavioral deficits measured 6 weeks after charged particle exposure

 

Latest studies are based on teach and work with the animals before its radioactive particles’ exposition and researchers are planning to introduce cosmic rays’ protection in spacial naves or create new brain medication. However, this only would reduce the problem, because it is not possible to avoid this radiations.

SpaceX Falcon 9 rocket.

 

ORIGINAL ARTICLES

In this article there are two original sources. One for the MIT experiment against Mars One and another for NASA experiment.

http://newsoffice.mit.edu/2014/technical-feasibility-mars-one-1014

MIT article says that there is not the enough technology yet to land in Mars. They say that if astronauts want to survive by eating local crops, as Mars One expect, the vegetation would produce high levels of oxygen that astronauts could not tolerate. They think that should exist a mechanism to reduce oxygen excess, and this not exist yet.

http://advances.sciencemag.org/content/1/4/e1400256

In the original article of Advanced Science that remit to NASA experiment, they say why cosmic rays are inevitable. Exposure to these energetic particles is inevitable because these particles travelling near the speed of light will traverse the hull of any spacecraft and tissue, and although strategies for increasing shielding (internally or via hull thickness) have been considered, they are offset by the practical limitations associated with the cost of sending increased payloads into space.

ARTICLE

PERSONAL OPINION

I have chosen this article because I’m interested in why Human has not landed in Mars yet. I thought that we had already the perfect technology to fly there, but by reading this new and its data, I can understand the difficulties to carry out with the travel.

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Estas entrada foi publicada en Neurociencia / psicoloxía coas etiquetas , . Ligazón permanente.

2 Responses to ROAD TO MARS?

  1. WELL DONE,

    But you’d explain better the plot taken from the original source in Nature.
    > What’s the independente variable, in x-axe? (charged particles irradiation dose in centigray, cGy, see the unit here)
    > Describe the response, dependent variable (Discrimination index, see its definition and the procedure’s description in ‘Materials and Methods” section ‘Behavioral testing’)

  2. Iraima Fernández di:

    Amazing post! It is very interesting to know the problems that there are. Most people think that go to a planet it is as easy as take off with a rocket and land in the new planet, but they are not aware of how many difficulties does something like this present.
    Anyway, even with this problems, if I were chosen to do a trip like that, I would not care wait until the technology has been developed enough. And you?

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