Mars Expedition

| Total Words: 593

In June and July of 2003, two unique robot rovers were launched by NASA bound for Mars. The goal of NASA was to collect informations about our neighbour planet, the red planet called Mars. Previous expeditions of the last nearly 30 years have given us so much informations about Mars, but they have been fleeting visits and not enough data had been collected. But this mission would be different. The two rovers were expected to last 90 Martian days at best, but even after more than 1000 Martian days on, they were still going strong.

The two rovers were nicknamed Spirit and Opportunity. They weighed about 180 kg each, that is about 400 lbs in American terms. They carried batteries, communication equipment, and solar panels. The rovers used artificial intelligence that even allowed them to refuse to do what their controller told them, if they felt an action would be dangerous. Because of the conservative nature of their use, they lasted more than 10 times the period originally planned and have travelled a distance of more than 10 miles across the Martian surface.

The first one to make it to the surface of Mars was the rover nicknamed Spirit. Spirit landed on Mars...

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