Nothing that is destined to operate much beyond Mars orbit is powered by solar panels.
Well, to be pedantic, Juno is a solar powered orbiter at Jupiter. The average distance to the sun for Mars is 1.5 AU, whereas it is 5.4 AU for Jupiter. But that's pushing the limits of the technology. There's an informative article on the topic from Smithsonian's Air and Space Magazine. You can get a sense of the size of the panels from this video.
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Nothing that is destined to operate much beyond Mars orbit is powered by solar panels.
Well, to be pedantic, Juno is a solar powered orbiter at Jupiter. The average distance to the sun for Mars is 1.5 AU, whereas it is 5.4 AU for Jupiter. But that's pushing the limits of the technology. There's an informative article on the topic from Smithsonian's Air and Space Magazine. You can get a sense of the size of the panels from this video.