>
>http://msnbc.msn.com/id/8098155/
>>
>>High resolution image at http://qt.exploratorium.edu/mars/opportunity/rear_hazcam/2005-06-04/1R171155999EFF55TIP1314R0M1.JPG>
>That's unbelievable. The little engine that could.
>
>I never thought with dust and all that the power cells would generate enough electricity this long. And never tought it would have enough power to get free. Luckily it wasn't mud, was it? <g>
I am not sure about this one, but in general, for space exploration, energy is often obtained from two sources: 1) Photovoltaic (solar) cells - these were developed for spacecraft in the first place, 2) Nuclear energy. When spacecraft such as Voyager goes very far away from the Sun, only option 2 is feasible.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
