Only if we send one there. There is no solid evidence of life on Mars, and there are certainly no men on Mars. If we send a manned mission there, which as been discussed for decades, we would certainly make it so that the people on that mission could return.

Phobos-Grunt (an interesting name!! but "grunt means soil in Russian") is a planned Russian mission to Phobos, one of the moons of Mars with plans to return a soil sample. A Chinese probe named Yinghuo-1 will also be sent together with the mission. It is planned to be launched in October 2009.

the mars mission is dependent on robotic technoloy and computer in general. collecting soil sample, researching the surrounding area and processing all data depends on computer.

Sample return wights increased with each mission as each mission spent longer than the previous mission on the lunar surface. As such, Apollo 17, as the last mission, has the highest sample return weight. A17 brought back 111 kilograms (240 lb) of samples after spending 3 days, 2 hours, 59 minutes, and 40 seconds on the lunar surface.