Considering the Possibility of Life on Mars

Essay from the year 2003 in the subject Astronomy, University of Phoenix, language: English, abstract: In the early 1900′s, people looked into the night sky and believed there was, or at the very least had been, life on Mars. Intricate canal systems were thought to be seen crisscrossing the planet, and were used as evidence of a wondrous civilization. But, Mars was millions of miles away, and when we got closer to the Red Planet, starting with NASA′s Mariner 10 mission, we learned much more...