Is there life on Mars? That fascinating question has puzzled mankind for ages. And it seems that we are getting closer to finding an answer. Scientists have learned in recent years that Mars has far more water (in frozen form anyway) than we first thought. Water, of course, is necessary for the development and sustenance of life as we understand it. Most scientists studying Mars agree that while the polar caps of Mars may contain ice, life would require water in its liquid form. While there may not be liquid water there now (at least that we’ve found), new evidence suggests it may have existed on the planet’s surface at one time. In addition,there is some speculation that newly discovered methane “burps” might come from microbial life.