02 May 2014. Korotev, Randy L. "How Do We Know That It's a Rock From the Moon?" How Do We Know That It's a Rock from the Moon? Washington University in St. Louis, Nov. 2006. Web.
Research has shown that over 3.5 billion years up to four millibar of CO2 along with multiple centimeters of water can be lost due to solar winds. This change in atmospheric pressure was relatively fast and could have caused it to be very difficult for life to continue if it even existed to begin with. All of these problems paint a dismal picture for life on Mars today, but that doesn’t mean it’s completely impossible. New light has been shed on the possibilities of life currently living on Mars both by our latest rover and by discoveries here on earth. On earth scientists have discovered Achaea and Bacteria in the Earth’s subsurface.
Continuing changes is an accomplishment in modern American technology and it gives the world a step forward in finding the real truth about existing life on Mars. Hurtling in from space some 16 million years ago, a giant asteroid slammed into the surface of Mars and exploded with more power than a million hydrogen bombs. This caused huge quantities of rock and soil to fly into the thin Mars’ atmosphere. While most of the rocks fell back to the surface, some of the debris, fired upward by the blast at high velocities, escaped the weak tug of Mars’ gravity and entered into orbits of their own around the sun. Scientists believe that the earth’s gravity caught some of the debris and pulled it into the earth.
References 1. Human Mars Exploration: The Time Is Now, Robert Zubrin, Journal of Cosmology, Vol 12. 3549-3557. 2. The Problem of Human Missions to Mars, Michael Robinson, Ph.D., Journal of Cosmology, Vol 12.
These photographs were the world’s first pictures taken of a planet besides Earth. It wasn’t long after that, in 1976, that NASA sent space crafts to actually land on Mars. They sent two, the Viking 1 and 2. Next, in 1977, the first wheeled rover explored it. Many observations were made and valuable information was discovered, which only increased scientists’ curiosity about Mars and its past.