Monday, November 12, 2012

The Mars Pathfinder mission

The Mars Pathfinder mission was designed to be a revelation of the technology to put a lender and a rover on the surface of Mars so for cost effective and resourceful. Pathfinder not only met their goal, but also sent to Earth an amount of data and outshine extraordinary uptime for which it was designed.

Mars Pathfinder used an innovative method to enter directly into the Martian atmosphere, aided by a parachute to slow its descent through the thin Martian atmosphere and a giant system of airbags to cushion the impact. 

The landing site, an ancient flood plain in Mars' northern hemisphere known as Ares Vallis, is one of the rockiest planet. It was chosen because scientists believed it would be a relatively safe area to land and containing a wide variety of rocks deposited during a flood.

The lender, formally called the Carl Sagan Memorial Station and successfully landed, and the rover, called Sojourner in honor of the American advocate of civil rights Sojourner Truth, exceeded lifetimes for which they were designed, the lender almost three times, and the rover by 12 times.

Since landing until the final data transmission on September 27, 1997, Mars Pathfinder sent 2,300 million bits of information, including more than 16,500 images from the lender and 550 images from the rover, as well as more than 15 chemical analyzes of rocks and soil and lots of wind data and other meteorological factors. The results of the investigations carried out by the scientific instruments of the lender and the rover suggest that Mars at some point in the past was hot and humid, with liquid water and a thicker atmosphere.

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