Beginning of Essay
? The question of life on Mars is a puzzle that has plagued many minds throughout the world. Life on Mars, though, is a reality. When you think of Martians, you think of little green men who are planning to invade Earth and destroy all human life, right? Well, ....

Middle of Essay
.... Mars about 3.8 billion years ago was much similar to the young Earth. Microbes and bacteria probably sprouted everywhere in the warm and wet climate. Although now we only see a cold red planet, which was probably due to a collision of an astroid that would have set back the evolution process of Mars, causing it to be a harsh planet. A Viking spacecraft which landed on Mars in 1976 found that the planet was bathed in ultraviolet radiation, "intense enough so it would probably fry any microbe we know on this planet,"says Jack Farmer, an Ames researcher who calls himself an "exopaleontologist"—a searcher for fossils on other worlds. The redness of ....