It looks like after a successful decade long mission The Mars Global Surveyor spacecraft is lost. The Surveyor was the first successful mission back to Mars in twenty years not just for the United States but for humanity. It was also the most successful probe sent; collecting more data about Mars then all other missions combined.
Using an array of five instruments including high resolution cameras and 3-D imaging the probe took over 240,000 images of the planet. Thanks to Surveyor we now have a great model of the planets surface for future space missions. Mineral deposits where charted as well as weather patterns giving geologist and meteorologist a wealth of information.
One of the surprising finds by Surveyor is the presence of weak magnetic areas and the possibility that Mars at one time had plate tectonics the same as Earth has today. Without active plate tectonics and the off gassing and eruptions that result; Earth would have little to no atmosphere much like we see on Mars.
"It really has opened up new vistas of Mars that we hadn't the foggiest notion of," said Arizona State University geologist Ron Greeley.
For an investment of $150 million to construct the spacecraft, I think we have gotten our monies worth of performance, data and understanding. The use of low cost probes in space exploration has been proven with Mars Global Surveyor. It has brought us great strides forward in actually planning a successful mission to our sister planet.
NASA / JPL
Taken by Mars Global Surveyor 11/07/06 over Mars North Pole.
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