Operating for 34 years, 10 months and 26 days as of today (31 July 2012) (current operation time), the spacecraft receives routine commands and transmits data back to the Deep Space Network. At a distance of 120 astronomical units (1.8x1010 km) as of February 2012,[2] it is the farthest human-made object from Earth. Voyager 1 is now in the heliosheath, which is the outermost layer of the heliosphere. On 15 June 2012, NASA scientists reported that Voyager 1 may be very close to entering interstellar space and becoming the first human-made object to leave the Solar System.
Source: Wikipedia