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Written by Simone Poleggi. Find more information on www.ilsistemasolare.it/I-Pianeti/Marte'>Pianeta Marte and www.ilsistemasolare.it/I-Pianeti/Marte/foto-di-marte'>Foto di Marte.


".....The two rovers were nicknamed Spirit and Opportunity.....
.....mars,martian,planet,....."

In June and July of 2003, two unique robot rovers were launched by NASA bound for MarsThe goal of NASA was to collect informations about our neighbour planet, the red planet called Mars. But this mission would be different. Previous expeditions of the continue nearly 30 years have given us so much informations about Mars, but they have been fleeting visits and not enough data had been collected. They weighed about 180 kg each, that is about 400 lbs in American terms. The two rovers were to be late 90 Martian days at best, but even more than 1000 Martian days on, they were still going strong.

The two rovers were nicknamed Spirit and Opportunity. The rovers used artificial intelligence that even allowed them to turn a deaf ear to to do what their controller told them, if they felt an action would be dangerous. They carried batteries, communication equipment, and solar panels. Spirit landed on Mars January 4th, 2004 in a crater a mere 10km from the target. Because of the conservative nature of their use, they lasted more than 10 times the era originally conceptual and have travelled a remoteness of more than 10 miles crosswise the Martian surface.

The first one to make it to the surface of Mars was the rover nicknamed Spirit. From its start in the crater, it has discovered sundry rocks of volcanic origin and the action of subsurface water on these rocks. Spirit creative important discoveries. It discovered also one particularly interesting rock, nicknamed Humphrey, a volcanic-like bank morphological perhaps by magma. Spirit discovered patches of soil with a high salt patient that tends to be original by the former existence of water. This finding alone has removed doubts from several scientists whether water existed or not on Mars at some time in the past.

Not only has Spirit helped us grasp more on the geological and physical aspects of Mars: Spirit took the first picture of Earth from the surface of another planet. It had brightly coloured, mineralized parts inside, that would most likely be aboriginal by water finding its way into it, before or sometime consecutively the shelf was formed. Spirit was lucky enough to catch a lunar eclipse of the Mars' moon Phobos as it disappeared into the shadow of Mars.

The second rover to make it to the surface of Mars was Opportunity. It has also taken night-time pictures of the transit of the moons and even Mercury transversely the sun. It landed on the opposite side of the planet in a crater in the medial of a plain. It landed 21 days subsequently Spirit on January 25th, 2004. This again was used by scientists as proof that water existed on Mars in ancient times.

The two rovers have sent hind hundreds of thousands of images in both grey-scale and colour of the Martian surface. Opportunity worked far and wideADV Space in craters on rocks presumably multiform by sulphite rich sands from evaporated lakes and that had been pressed and formative by the elements, wind, pressure, and water. Equipped with a geological kit and motorized snag tools, they were able to look beneath the surface to discover more than previously meditation imaginable.

All of these new discoveries have additional our familiarity at that point at the same time increasing the amount of questions we have about Mars. The pretty panoramic shots can take your breath way. Who knows what lies beyond the next bank outcropping?

"..... Why did the water disappear? Was there life on Mars? Could humans live on Mars? As these little rovers keep working, maybe we will even have more questions answered in the close future. Why did the water disappear? Was there life on Mars? Could humans live on Mars? As these little rovers keep working, maybe we will even have more questions answered in the close future...."

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