"Voyager 1, now more than 9.6 billion miles away, is the most distant human-made object, traveling at 38,400 miles per hour. It has entered the outermost neighborhood of the solar system, the heliopause, where the winds of charged particles flying out from the Sun have diminished to subsonic speeds. When the solar winds come to a stop, Voyager 1 will have officially left the solar system and entered interstellar space."
— Two Early Pioneers Continue Their Work at the Frontier - New York Times
