Madhi19 Reddit new post madhi19 on Humanity escapes the solar system: Voyager 1 signals that it has reached the edge of interstellar space, 11billion miles away - "will be the first object made by man to sail out into interstellar space"

You're nitpicking am sure the question was about power source to transmit not motion!

from reddit: the front page of the internet http://www.reddit.com/r/worldnews/comments/v4n60/humanity_escapes_the_solar_system_voyager_1/c51cr25