Mars exploration is still developing. The planet Mars is about 55 million kilometers away from earth. It will take three years to be able to get to Mars and going back. Because of this distance astronauts would be going to face more dangers in their long flights. Another is that the bones of humans could lost its calcium content and weakens because of the near-zero gravity in outer space. Once it happens, the bones of the astronauts might be fractured more easily if they land on Mars or return to Earth.

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Because of the near-zero gravity, their muscles could get weak as the muscles don’t have to hold the body up. Body fluids could also move upward considering that there is no enough gravity pulling the fluids down. This activity will create signal to the kidney to excrete more fluids which will cause dehydration among the astronauts. The astronauts will also be exposed in prolonged radiation that comes from the sun.

Because of this problems there are suggestions that developed robots should be used to explore Mars instead of humans. Advanced robots could operate equipment, build station, repairs, or carry scientific experiments in Mars as they say.

Artificial touch screens and videos will be used in this technology. Robot’s artificial senses are connected to the sense of human operators. The robots will be equipped of video camera which will be considered as it’s eyes and its limbs will have a special touch sensor.

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Human operators can exactly sees what the robots sees as they have screen videos worn as goggles. The robots hands are also connected in the sensor within the data gloves worn by the human operators.

Still there is a problem with this technology. The distance from the earth to Mars will matter. The radio signals from the human operators from earth to the robots in Mars would take for about 20 minutes.

The robot technology is now being planned to be used on the moon or on a space station first before using it into Mars.