Radiation on Mars: Does it Lack a Magnetosphere?

[thomshere]

Some article made mention of intense radiation on Mars. Does that mean Mars lacks a magnetosphere? I figured it would be about like earth, with a molten iron core.

 

[Drakkith]

Mars is much smaller than Earth and the heat that kept the core and mantle molten was lost much quicker than here on Earth. As a result, the planetary dynamo that powers Earth's magnetic field died off long ago on Mars.

http://en.wikipedia.org/wiki/Mars#Internal_structure

 

[Bill_K]

Some article made mention of intense radiation on Mars. Does that mean Mars lacks a magnetosphere? I figured it would be about like earth, with a molten iron core.

Did you try Googling "mars magnetosphere"? Or do you want us to Google it for you.

 

[enorbet]

If you're wonder and concern about "intense radiation" stems from considering that it might forbid manned exploration or perhaps more importantly, colonization, perhaps you will be glad to know that "intense" is rather overstating the case. Even with present technology it is still possible. Here's a synopsis http://www.mars-one.com/faq/health-and-ethics/how-much-radiation-will-the-settlers-be-exposed-to.

MarsOne has been an ardent supporter of manned exploration of Mars so they do have an agenda, but the math and the standards look good. Also, given the expense and the sheer exposure to chance on a 210 day journey versus one substantially less than a week, it is likely we will revisit our Moon before any real attempt is made on Mars, so we will learn a great deal more of the risks and mitigation by then.

 

[pmacias]

I can confirm that Mars does indeed lack a strong magnetosphere like Earth's. This is due to its smaller size and slower rotation, which leads to a weaker magnetic field. This means that the planet is more exposed to incoming radiation from the sun and cosmic rays.

The lack of a strong magnetosphere on Mars does not necessarily mean that the planet is completely unprotected from radiation. The planet's atmosphere does provide some shielding, but it is not as effective as Earth's magnetosphere. Additionally, certain areas on the planet's surface may have higher levels of radiation due to variations in the terrain and composition of the soil.

However, it is important to note that the level of radiation on Mars is still within the range that humans can tolerate for short periods of time. NASA has been conducting research and developing technologies to protect astronauts from radiation during future manned missions to Mars.

In conclusion, while Mars does lack a strong magnetosphere, it does not mean that the planet is completely exposed to dangerous levels of radiation. Further studies and advancements in technology will continue to enhance our understanding and ability to protect ourselves from the potential hazards of radiation on Mars.