Hey, be nice.<br /><br />The only manmade object to have left the solar system thus far is Voyager 1 -- if you define the edge of the solar system as the heliopause (where the solar wind's influence is less than the interstellar wind). There are a total of four objects currently on solar escape trajectories: Pioneer 10, Pioneer 11, Voyager 1, and Voyager 2. Voyager 1 is travelling the fastest, and has overtaken all the others, but they're all leaving the solar system. The locations of Pioneers 10 & 11 are not precisely known; both spacecraft no longer respond when engineers attempt to contact them, due to a combination of distance, declining electrical power, and declining propellant. Pioneer 11 failed, and Pioneer 10 is simply too far away for communications. Both are much too small to be detected passively, so they're basically gone.<br /><br />The Voyagers are both still in active communications with Earth. Their missions are not over, and they continue to return valuable science data. Neither has a working camera anymore, and Voyager 1 has lost the use of most of its instruments. But they are still plugging away, helping astronomers learn more about the extreme regions of the solar system.<br /><br />The elite club of spacecraft on solar escape trajectories will soon be joined by a fifth spacecraft, the first to go on such a voyage in decades. New Horizons will launch next year and take ten years to travel to Pluto. It will make a flyby of the ninth planet and then continue on out into space. <div class="Discussion_UserSignature"> <p> </p><p><font color="#666699"><em>"People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint it's more like a big ball of wibbly wobbly . . . timey wimey . . . stuff."</em> -- The Tenth Doctor, "Blink"</font></p> </div>