3 résultats pour "pathfinder"
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Mars Pathfinder - astronomy.
Pathfinder and Sojourner also gathered engineering data for planning future Mars missions. Pathfinder entered Mars's atmosphere without first stopping in Mars orbit,an approach likely to be used by future landers, and its previously untried airbag system performed flawlessly. Sojourner needed about three months to traverse lessthan 90 m (less than 300 ft), but demonstrated that rovers can explore Mars. Engineers predict that the next generation of Mars rovers will be able to travel thousandsof k...
- Mars Pathfinder - astronomie.
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Mars (planet) - astronomy.
The Martian core is probably much like Earth’s, consisting mostly of iron, with a small amount of nickel. If other light elements, particularly sulfur, exist there as well, thecore may be larger than presently thought. From studying Earth’s magnetic field and core, scientists theorize that the motions of the liquid rock in Earth’s core generateits magnetic field. Mars does not have a significant magnetic field, so scientists believe that Mars’s core is probably solid. However, spacecraft data in...