Trip to the MARS!!

Can you believe? One day, human can go to Mars? The distance from Earth to the Mars is 490 million km. Its a long way from home. Thats why we should consider about the transport fuel, foods and drinks for the astronaut to live.However, for a trip which would take a minimum of 12 month travelling time plus perhaps a 1 1/2-year stay to wait for the next Earth-Mars alignment which would allow the crew to return home, this is not possible.

Resupply trips by unmanned vehicles, like those made for the ISS, are also not possible, because the necessary Earth-Mars alignment only happens every two years. The journey actually give big danger to the spacecraft crew because the radiation exposure become greater as we go far from our planet because of the total absence of Earth's magnetic field. On Mars itself, the effect of the radiation may be tempered by building habitation modules underground, but during the trip there and back, the spacecraft itself must be able to prevent dangerous radiation levels.

If ice exists, Martian water could be used for consumption, once purified. Also since water is made up of hydrogen and oxygen, it could be possible that decomposed water be used to fill up the tanks of the spacecraft once it arrive on the Red Planet.

Another suggestion given by John Hoffman, a physicist at the University of Texas at Dallas who is working on a 2007 Mars probe “is to send rockets up two years before people go, then robotically make water for an 18-month stay and fuel for the return journey.”

If it is possible to make water, fuel and air on-site, then it would be possible to grow food. If the chemical samples like those onboard the Spirit prove that Mars soil is not poisonous, it would be a relatively straightforward job to assemble a greenhouse on Mars and grow crops there. 13 crops have been identified to be able to thrive in a space habitat including wheat, potatoes, Soya beans and salad green by Donald Henninger, a NASA chief scientist.

sources : http://www.angksawan.com.my
http://www.nasa.gov/mission_pages/phoenix/main/index.html