Only eight space craft in total have ventured the 500 million plus miles to Jupiter or beyond, and all were nuclear powered. The new solar record is nice, but Juno, which launched in 2011, has quite some work ahead of it. It should arrive on July 4th this year, at which point it will orbit the giant planet 33 times, getting as close as 3,100 miles above the surface. NASA says the goal is to probe the thick cloud cover and insane storms to "learn more about the planet's origins, structure, atmosphere and magnetosphere." There's no mention of any eternal youth potion, though.