Atmospheric Escape of Primitive Mars

Essay by kpridgenCollege, Undergraduate November 2007

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Since the introduction of atheistic original sciences there has been much debate whether or not life did, does, or will exist elsewhere in the universe. Due to its close proximity to Earth and possession of intriguing characteristics, such as polar ice and soil, Mars has been extensively studied by astronomers, geologists and nearly every other kind of scientist. This intense collection of data leads a large group of scientists to the belief that life did exist on Mars in the past. If Mars had an atmosphere, similar to that of present-day Earth, in the past life could have developed and been supported. For there to be animal life on Mars, Earth or any other planet, several conditions must be met: "liquid water; the elements needed for metabolism and reproduction; a source of energy; and suitable environmental conditions". Of course, the biological presence must have already been introduced through interstellar matter, a meteor impact for example.

Upon arriving on Mars, the organisms would require these conditions in order to enable the evolutionary process to develop it into a thriving community of various species. Simply as there has not been fossil evidence found yet on Mars does not mean that it doesn't or didn't exist. There may be no fossils at all, yet there still may have been life as the reasons why the life did not get fossilized may be the same reason as to why there is not an atmosphere sufficient to support life today.[2: Life in the Universe (LiU). "Origin of Life: Conditions for Life." (accessed Oct. 25, 2007)]

The examination of Earth's atmosphere allows the scientific community to infer what the approximate composition of Mar's atmosphere was. The presence of oxygen, nitrogen, and carbon dioxide are all essential for a life supporting atmosphere. The atmosphere of Earth...